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Cyprus Miami

Producer in Gila county in Arizona, United States with commodities Copper, Molybdenum, Gold, Silver, Lead, Zinc, Rhodium, PGE
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Mineral rights holdings
  18. Land status
  19. Ownership information
  20. Production statistics
  21. Reserves and resources
  22. Workings at the site
  23. Links to other databases
  24. Bibliographic references
  25. General comments
  26. Reporter information

Geologic information

Identification information

Deposit ID 10186051
MRDS ID D000316
MAS/MILS ID 0040070008
Record type Deposit
Current site name Cyprus Miami
Alternate or previous names Inspiration, Live Oak, Bluebird, Thornton, Joe Bush, Ox Hide, Miami Mine, Red Hill, Brisbee, Miami Inspiration

Comments on the site names

  • Location Miner Haight Group ID:10209674 and Boston Miami Copper Co Claims ID:10136998 may be possible duplicates to Cyprus Miami

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -110.88679, 33.40818 (WGS84)
Elevation 1130
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Gila(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Inspiration(quadrangle 1:24,000 scale)

Globe(quadrangle 1:100,000 scale)

Mesa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Salt(hydrologic unit)

Salt(hydrologic accounting unit)

Salt(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States Arizona Gila

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 001 N 014 E 24 Arizona

Commodities

Commodity Importance
Copper Primary
Molybdenum Primary
Gold Secondary
Silver Secondary
Lead Tertiary
Zinc Critical Tertiary
Rhodium Critical Tertiary
PGE Critical Tertiary

Comments on the commodity information

  • Rhenium Occurs In Molybdenite.

Materials information

Materials Type of material
Chalcocite Ore
Chalcopyrite Ore
Bornite Ore
Brochantite Ore
Covellite Ore
Cuprite Ore
Galena Ore
Gold Ore
Malachite Ore
Molybdenite Ore
Silver Ore
Quartz Gangue
Pyrite Unknown

Alteration

  • (Local) Silicification
  • (Local) Sericitization
  • (Local) Biotization
  • (Local) Hydration
  • (Local) Argillization
  • (Local) Orthoclazation

Analytical data

Result ORE NOW AVERAGES LESS THAN 1% CU, 0.02% MO, TRACE AU, AG. PROTORE ASSAYS 0.15-0.4% C

Mineral occurrence model information

Model code 79
USGS model code 21a
Deposit model name Porphyry Cu-Mo
Mark3 model number 2

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock type qualifier porphyritic quartz-monzonite (adamellite), granodiorite, quartz-monzonite, and granite porphyry.
    Rock unit name Schultze Granite
    Stratigraphic age (youngest) Paleocene
  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Rock type qualifier coarse grained quartz-muscovite schist, fine grained quartz-sericite-chlorite schist, and fine grained amphibole schist.
    Rock unit name Pinal Schist
    Stratigraphic age (youngest) Mesoproterozoic

Nearby scientific data

Ore Body (1) -110.88679, 33.40818
ListMap

Economic information

Geologic structures

Type of structure Local
Structure name Low Angle Bulldog Fault, Miami Fault- Both Cutting Are Into Distinct Pieces

Ore body information

  • Thickness 120M
    Length 2500M
    Width 600M
    Area 1000HA
    Depth to top 45M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Shape of Orebody #1 MASSIVE
    Primary mode of Origin HYDROTHERMAL
    Secondary mode of Origin OXIDATION
    Primary Ore Control FAULTING
    Secondary Ore Control FRACTURING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 SERICITIC
    Type of Wallrock Alter. #2 SILICIFICATION
    Type of Wallrock Alter. #3 ADV ARGILLIC
    Strike And Dip N72E:
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 15
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 1000
    Future Surface Area (HA) 0
    Previous Surface Area (HA) 1000
    Reclaimed Surface Area (HA) 0
    Date of Last Modification 920529
  • General form Irregular
    Strike N55E
    Dip N
    Plunge SW
    Thickness 274.32M
    Length 3657.6M
    Width 762M

Controls for ore emplacement

  • Schistosity

Comments on the geologic information

  • Geometry Data Given Pertains Only To The Original Inspiration Consolidated Copper Co. Pits. For Bluebird And Ox Hide Geology, See Sequence Numbers 0040070007 And 0040070060, Respectively. However, The Figures Given For The Area Disturbed Include The Disturbed Areas For The Bluebird And Ox Hide Pits.
  • Supergene Enrichment, Much Of Which Occurred Before Most Of the Faulting And Tilting In Area (Concentration)
  • Schistosity (N50e, Steep Se) Controlled Instrusion Of Schultze Granite And Hydrothermal (Solutions) That Deposited Primary Sulfide Minerals [Ore Control]

Economic information about the deposit and operations

Operation type Surface
Development status Producer
Commodity type Metallic
Significant Yes
Discovery year 1872
Mining method Open Pit
Year of first production 1915
Milling method Leach-Solvent-Extract-Electrowin

Mining district

District name Globe-Miami District
District name Miami-Inspiration District

Mineral rights holdings

Type of mineral rights Patented
Type of mineral rights Located Claim

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Cyprus Amax Minerals Co.
    ID 200112
    Interest 100
    Home office Colorado
    Year 1995
    First year 1988
  • Type Operator
    Owner Cyprus Miami Mining Corp.
    Home office Arizona
    Year 1995
  • Type Owner-Operator
    Owner Cyprus Copper Co.
    First year 1991
  • Type Owner-Operator
    Owner Phelps Dodge Corp.
    Interest 100
    First year 2006
    Last year 2007
  • Type Owner-Operator
    Owner Freeport-McMoran Copper and Gold Inc.
    Interest 100
    Year 2009
    First year 2007
  • Type Owner
    Owner Inspiration Resources
    Interest 100
    Last year 1988

Comments on the ownership information

  • Inspiration Consolidated Copper Company Acquired The Bluebird Property For $700,000 Paid In Six Annual Installments And A Royalty Payment Of $0.033/Kg Of Cu Produced Or A Minimum Annual Payment Of $225,000 Up Through 1999. In 1988, Cyprus Purchased The Inspiration Consolidated Copper Company From Its Parent, Inspiration Resources Corp. For $125 Million, Whose Assets Consisted Of All Their Copper Properties, The Smelter, And Copper Rod Plant. Cyprus Minerals Merged With Amax Inc, In November 1993.

Production statistics

  • Year 1960
    Description 5315000 4106000 80800000 5315000 St Ore, St Waste, Lbs Cu
  • Year 1961
    Description 4847000 3448000 78331000 4847000 St Ore, St Waste, Lbs Cu
  • Year 1962
    Description 5552000 3933000 104581000 5552000 St Ore, St Waste, Lbs Cu
  • Year 1963
    Description 5487000 6006000 93874000 5487000 St Ore, St Waste, Lbs Cu
  • Year 1964
    Description 5837000 9293000 97815000 5837000 St Ore, St Waste, Lbs Cu
  • Year 1965
    Description 5799000 9490000 106870000 5799000 St Ore, St Waste, Lbs Cu
  • Year 1966
    Description 5446000 8404000 97832000 5446000 St Ore, St Waste, Lbs Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Copper Copper 1wt-pct
  • Year 1967
    Description 4013000 5132000 54252000 4013000 St Ore, St Waste, Lbs Cu
  • Year 1968
    Description 6167000 6313000 69723000 6167000 St Ore, St Waste, Lbs Cu
  • Year 1969
    Description 8854000 11419000 103513000 8854000 St Ore, St Waste, Lbs Cu
  • Year 1970
    Description 9376000 13998000 109094000 9376000 St 0re, St Waste, Lbs Cu
  • Year 1971
    Description 6862000 11814000 92508000 6862000 St Ore, St Waste, Lbs Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Copper Copper 1wt-pct
  • Year 1972
    Description 7792000 14332000 101492000 7792000 St Ore, St Waste, Lbs Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Copper Copper 1wt-pct
    Primary Molybdenum Molybdenum 0wt-pct
  • Year 1973
    Description 8722000 16909000 102663000 8722000 St Ore, St Waste, Lbs Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Copper Copper 1wt-pct
    Primary Molybdenum Molybdenum 0wt-pct
  • Year 1974
    Description 8453000 18528000 99401000 8453000 St Ore, St Waste, Lbs Cu
  • Year 1975
    Description 6291000 19610000 89794000 6291000 St Ore, St Waste, Lbs Cu
  • Year 1976
    Description 4610000 8841000 71871000 4610000 St Ore, St Waste, Lbs Cu
  • Year 1977
    Description 2497000 6054000 39772000 2497000 St Ore, St Waste, Lbs Cu
  • Year 1978
    Period 1911-1978
    Ore mined 760000000mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Cu Copper Copper 1wt-pct
    Primary Mo Molybdenum Molybdenum 0wt-pct
  • Year 1978
    Description 5630000 15742000 74211000 5630000 St Ore, St Waste, Lbs Cu
  • Year 1979
    Description 6105000 19810000 81552000 6105000 St Ore, St Waste, Lbs Cu
  • Year 1980
    Description 10127000 12062000 72266000 10127000 St Ore, St Waste, Lbs Cu
  • Year 1981
    Material Ore; 1.12 stripping ratio
    Ore mined 8285000mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Cu Copper Copper 23782mt 1wt-pct
  • Year 1981
    Description 15847000 17735000 109100000 15847000 St Ore, St Waste, Lbs Cu
  • Year 1982
    Description No Ore Milled Sent To Leach Dumps 14021000 Mt Ore Mined
  • Year 1982
    Description Dump Leach/Sx-Ew 55484 Mt Cu Cathode Produced
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 55484mt
  • Year 1982
    Material Ore; 1.42 Stripping Ratio
    Ore mined 7571000mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Cu Copper Copper 32137mt 1wt-pct
  • Year 1983
    Material Ore; 1.61 stripping ratio
    Ore mined 6927000mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Cu Copper Copper 35445mt 1wt-pct
  • Year 1983
    Description 5,431,000 Mt Ore Milled - Rest To Leach 27375000 Mt Ore Mined
  • Year 1983
    Description 37764 Mt Cu Produced From Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 37764mt
  • Year 1983
    Description Dump Leach/Sx-Ew 35828 Mt Cu Cathode Frm Sx-Ew
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 35828mt
  • Year 1983
    Description 130 Mt Mo Prod Frm Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Molybdenum Molybdenum 130mt
  • Year 1984
    Description 11 Mt Mo Prod. Frm Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Molybdenum Molybdenum 11mt
  • Year 1984
    Description 537 Mt Cu Frm Leach Ppt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 537mt
  • Year 1984
    Description Dump Leach/Sx-Ew 35546 Mt Cu Cathode Frm Sx-Ew
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 35546mt
  • Year 1984
    Description 32401 Mt Cu Produced From Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 32401mt
  • Year 1984
    Description 7,218,000 Mt Ore Milled - Rest To Leach 13557000 Mt Ore Mined
  • Year 1984
    Material Ore; 1.72 stripping ratio
    Ore mined 6339000mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Cu Copper Copper 35547mt 1wt-pct
  • Year 1985
    Description 128 Mt Mo From Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Molybdenum Molybdenum 128mt
  • Year 1985
    Description 548 Mt Cu From Leach Ppt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 548mt
  • Year 1985
    Description Dump Leach/Sx-Ew 38068 Mt Cu Cathode Frm Sx-Ew
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 38068mt
  • Year 1985
    Description 31272 Mt Cu Prod Frm Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 31272mt
  • Year 1985
    Description 7,400,000 Mt Ore Milled - Rest To Leach 15084000 Mt Ore Mined
  • Year 1985
    Material Ore; 1.5 stripping ratio
    Ore mined 7684000mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Cu Copper Copper 38068mt 1wt-pct
  • Year 1986
    Description 5695 Mt Cu From Leach Ppt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 5695mt
  • Year 1986
    Description Dump Leach/Sx-Ew 41943 Mt Cu Cathode Frm Sx-Ew
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 41943mt
  • Year 1986
    Description 2412 Mt Cu Prod Frm Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 2412mt
  • Year 1986
    Description 429,000 Mt Ore Milled - Rest To Leach 9514000 Mt Ore Mined
  • Year 1986
    Material Ore; 1.91 stripping ratio
    Ore mined 9085000mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Cu Copper Copper 41943mt 1wt-pct
  • Year 1987
    Description 41784 Mt Cu Cathode From Sx-Ew
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 41784mt
  • Year 1987
    Description 6095 Mt From Leach Ppt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major PPT Copper Copper 6095mt
  • Year 1987
    Description Dump Leach/Sx-Ew 9848000 Mt Ore Mined
  • Year 1987
    Material Ore; 2.00 stripping ratio
    Ore mined 9300000mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Cu Copper Copper 44000mt 1wt-pct
  • Year 1988
    Description 22290 Mt Cu Cathode From Sx-Ew
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 22290mt
  • Year 1988
    Description 3658 Mt From Leach Ppt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 3658mt
  • Year 1988
    Description Dump Leach/Sx-Ew 5308000 Mt Ore Mined
  • Year 1988
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Cu Copper Copper 56000mt 1wt-pct
  • Year 1989
    Description Dump Leach/Sx-Ew 18248000 Mt Ore Mined
  • Year 1989
    Description 56327 Mt Cu Cathode From Sx-Ew
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 56327mt
  • Year 1989
    Description 85 Mt Cu From Leach Ppt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 85mt
  • Year 1990
    Description 55203 Mt Cu Cathode From Sx-Ew
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 55203mt
  • Year 1990
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Cu Copper Copper 57290mt
  • Year 1990
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Cu Copper Copper 57288.71mt
  • Year 1990
    Description Dump Leach/Sx-Ew 22361000 Mt Ore Mined
  • Year 1991
    Description Dump Leach/Sx-Ew 24040000 Mt Ore Mined
  • Year 1991
    Description 57740 Mt Cu Cathode From Sx-Ew
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 57740mt
  • Year 1991
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Cu Copper Copper 57740mt
  • Year 1991
    Material 0.57:1 strip ratio
    Ore mined 26500000mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Cu Copper Copper 57742.3mt 0wt-pct
  • Year 1992
    Material MAS, Cyprus Amax 1993 10-K p7-8.
    Ore mined 25600000mt
    Accuracy Accurate
    Description 57100 Mt Cu Cathode From Sx-Ew
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Copper Copper 57110mt
  • Year 1993
    Material Cyprus Amax 1994 10-K p3, Cyprus Amax 1993 10-K p7-8.
    Ore mined 26300000mt
    Accuracy Accurate
    Description 51100 Mt Cu Cathode From Sx-Ew
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Copper Copper 51120mt 0wt-pct
  • Year 1994
    Material Cyprus Amax 1994 10-K p3.
    Ore mined 28000000mt
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary leach ore Copper Copper 54000mt 0
  • Year 1995
    Material Cyprus Amax 1996 10-K p3
    Ore mined 32000000mt
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary leach ore Copper Copper 58600mt 0wt-pct
  • Year 1996
    Material Cyprus Amax 1996 10-K p3
    Ore mined 27000000mt
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary leach ore Copper Copper 65300mt 1wt-pct
  • Year 1997
    Material Cyprus Amax 1998 10-K p4.
    Ore mined 29000000mt
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary leach ore Copper Copper 70800mt 0wt-pct
  • Year 1998
    Material Cyprus Amax 1998 10-K p4.
    Ore mined 26000000mt
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Cu Copper Copper 74400mt 0wt-pct
  • Year 1999
    Material Phelps Dodge 1999 10-K, pp. 7-8.
    Ore mined 2269000mt
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary recoverable Copper Copper 12000mt 1wt-pct
  • Year 2000
    Material Includes material mined for leaching operations. \nPhelps Dodge 2003 10-K, pp. 7-8.
    Ore mined 42135000mt
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary electrowon Copper Copper 53800mt 1wt-pct
  • Year 2001
    Material Includes material mined for leaching operations. \nPhelps Dodge 2003 10-K, pp. 7-8.
    Ore mined 29667000mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary electrowon Copper Copper 40000mt 0wt-pct
  • Year 2002
    Material Phelps Dodge 2006 10-K, p. 14.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary electrowon Copper Copper 9530mt
  • Year 2003
    Material Phelps Dodge 2006 10-K, p. 14.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary electrowon Copper Copper 16100mt
  • Year 2004
    Material Phelps Dodge 2006 10-K, p. 14.
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary electrowon Copper Copper 8900mt
  • Year 2005
    Material Phelps Dodge 2006 10-K, p. 14.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary electrowon Copper Copper 11200mt
  • Year 2006
    Material Phelps Dodge 2006 10-K p14.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary electrowon Copper Copper 8600mt
  • Year 2007
    Material Freeport McMoRan 2009 10-K p. 23
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary recoverable Copper Copper 9100mt
  • Year 2008
    Material Freeport McMoRan 2009 10-K p. 23\nhttp://phx.corporate-ir.net/phoenix.zhtml?c=63811&p=irol-sec
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary recoverable Copper Copper 8600mt
  • Year 2009
    Material Freeport McMoRan 2009 10-K p. 23\nhttp://phx.corporate-ir.net/phoenix.zhtml?c=63811&p=irol-sec
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary recoverable Copper Copper 7300mt

Comments on the production information

  • In Jan. 1984, The Crusher And Concentrator Were Permanently Shutdown. In 1989, The Leach Precipitating Plant Was Permanently Shutdown. At This Time (5/92), All Production Is From The Leach/Sx-Ew Operation. 1982 - 1992 Production From Arizona Dept. Of Mines & Min. Res. Special Reports On Primary Copper Industry Of Arizona 1993 Production From Sec Form 10-K Rept, 12/31/93, P. 7.

Reserves and resources

  • Type In-situ
    Estimate year 1989
    Reserves 229000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.43 wt-pct Copper Primary 1989
  • Type In-situ
    Estimate year 1990
    Reserves 226100000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.43 wt-pct Copper Primary 1990
  • Type In-situ
    Estimate year 1991
    Reserves 213000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.45 wt-pct Copper Primary 1991
  • Type In-situ
    Estimate year 1992
    Reserves 320000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.44 wt-pct Copper Primary 1992
  • Type In-situ
    Estimate year 1993
    Reserves 193000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.45 wt-pct Copper Primary 1993
  • Type In-situ
    Estimate year 1994
    Demonstrated 257800000mt ore
    Total resources 257800000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.45 wt-pct Copper Major 1994
  • Type In-situ
    Name run-of-mill (ROM) leach reserves
    Estimate year 2008
    Reserves 91000000mt ore
    Remarks Freeport-McMoRan 2008 10-K, p. 32.\nhttp://phx.corporate-ir.net/phoenix.zhtml?c=63811&p=irol-sec
    Commodity Subtype Grade units Group Importance Year
    Copper ROM Leach Reserves 0.43 wt-pct Copper Primary 2008
  • Type In-situ
    Name Run-of-mill (ROM) leach reserves
    Estimate year 2009
    Reserves 91000000mt
    Remarks Freeport-McMoRan 2009 10-K, p. 33.\nhttp://www.fcx.com/ir/downloads/FCX_2009Form_10-K.pdf
    Commodity Subtype Grade units Group Importance Year
    Copper 0.43 wt-pct Copper Primary 2009
  • Type In-situ
    Estimate year 1986
    Demonstrated 111313000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.57 wt-pct Copper Primary 1986
  • Type In-situ
    Estimate year 1985
    Demonstrated 217730000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.53 wt-pct Copper Primary 1985
  • Type In-situ
    Estimate year 1980
    Proved 240710000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.55 wt-pct Copper Primary 1980
  • Type In-situ
    Estimate year 1984
    Demonstrated 227438000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.55 wt-pct Copper Primary 1984
  • Type In-situ
    Estimate year 1983
    Proved 161302000mt ore
    Probable 10789000mt ore
    Demonstrated 172091000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.52 wt-pct Copper Primary 1983
  • Type In-situ
    Estimate year 1982
    Reserves 222000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.58 wt-pct Copper Primary 1982
  • Type In-situ
    Estimate year 1981
    Proved 200195000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.51 wt-pct Copper Primary 1981
  • Type In-situ
    Estimate year 1975
    Total resources 66779000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.7 wt-pct Copper Primary 1975
    Molybdenum Mo 0.02 wt-pct Molybdenum Primary 1975
  • Type In-situ
    Estimate year 1982
    Proved 173755000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.54 wt-pct Copper Primary 1982
  • Type In-situ
    Estimate year 1986
    Demonstrated 117200000mt ore
    Remarks Includes Sulfide
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.53 wt-pct Copper Primary 1986
  • Type In-situ
    Estimate year 1995
    Demonstrated 252000000mt ore
    Total resources 252000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.46 wt-pct Copper Major 1995
  • Type In-situ
    Name leaching material
    Estimate year 2008
    Demonstrated 52000000mt ore
    Remarks Freeport-McMoRan 2008 10-K, p. 39.\nhttp://phx.corporate-ir.net/phoenix.zhtml?c=63811&p=irol-sec
    Commodity Subtype Grade units Group Importance Year
    Copper leaching material 0.45 wt-pct Copper Primary 2008
  • Type In-situ
    Name leaching material
    Estimate year 2009
    Demonstrated 41000000mt
    Remarks Freeport-McMoRan 2009 10-K, p. 40.\nhttp://www.fcx.com/ir/downloads/FCX_2009Form_10-K.pdf
    Commodity Subtype Grade units Group Importance Year
    Copper leaching material 0.45 wt-pct Copper Primary 2009
  • Type In-situ
    Estimate year 1996
    Demonstrated 221000000mt ore
    Total resources 221000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.46 wt-pct Copper Major 1996

Comments on the reserve resource information

  • Miami stockpile is 433 million mt ore grading 0.38% Cu, but the anticipated recovery rate is only 1.5%. That works out to 45 Kt Cu, and the table states only 25 Kt. (Freeport 2009 Form 10-K)
    http://www.fcx.com/ir/downloads/FCX_2009Form_10-K.pdf

Workings at the site

  • Type of workings Surface
    Area 1000HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method OPEN PIT
    Swell Factor .75
    Percent Waste Rock 34.9
    Avg. Overburden Thickness 0
    Primary Material Cover M-HARD ROCKS
    Percentage 100
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 15
    Max. Pit Slope (degrees) 45
    Capacity 68000
    Capacity Units MT ORE/DAY
    Unit Production Cost 1.429
    Units of Production $/MT ORE
    Operating Days per Year 353
    Operating Shifts per Day 3
    Year of Information 1992
  • Type of workings Surface
    Area 1000HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method ESTIMATE
    Mining Method OPEN PIT
    Swell Factor .75
    Percent Waste Rock 44.4
    Primary Material Cover M-HARD ROCKS
    Percentage 100
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 15
    Max. Pit Slope (degrees) 45
    Capacity 68000
    Capacity Units MT ORE/DAY
    Unit Production Cost 1.616
    Units of Production $/MT ORE
    Operating Days per Year 353
    Operating Shifts per Day 3
    Year of Information 1992
  • Type of workings Surface/Underground
    Overall depth 304.8M
    Overall length 762M
    Overall width 914.4M

Comments on the workings information

  • Old Miami Underground Workings, Open Pit. Miami East Under Development (1980) With Planned Production Of 2000 T/Day. In 1989, Miami Was An Open Pit Cu Oxide Mine With Heap And Dump Leaching, As Well As Solvent Extraction.

Comments on other economic factors

  • Mine Transportation Cost Included In Mine Op. Cost. Investment Record 017 Is Mine Working Capital Increase In 1992 Due To Increased Stripping. Investment Records 022 And 023 -- Royalty Rate Of $0.033/Kg Of Cu Produced Is Adjusted By 60% ($0.02) Because 60% Of The Average Ore Production To The Dumps Is From The Bluebird Property.

Comments on development

  • Miami And Inspiration Are Part Of Same Orebody, Though Owned By Different Companies. Miami Is E Of Inspiration. Former Operators Include Inspiration Copper Co (1908) On Joe Bush, Scorpio And Bulldog Shafts And Woodson, Columbia, Taylor Clipper, And Bulldog Adits; Live Oak Development Co. Consolidated In 1912 To Form Inspiration Consolidated Copper Co.; Keystone Copper Co (1915); Miami Copper Co., And Tennessee.

Reference information

Bibliographic references

  • Reserve-Resource

    Skillings Mining Review, Nov 24, 1973, P18. (Joe Bush

  • Geology

    The Porter GeoConsultancy webpages for the Miami Inspiration deposit contain detailed descriptions of the geology. Accessed on 7/27/2010 http://www.portergeo.com.au/index.asp

  • Workings

    Dayton,S and Jackson,D, 1974, Mining Program Aims At Growth

  • Deposit

    Arizona Pay Dirt. Inspiration Predicts Profit Soon From Newsx-Ew Plant After Strike Ends. August 1980, P.4.

  • Other Database

    Cimri

  • Production

    Dayton, S,1974; Inspiration'S Design For Clean Air: Eng and

  • Reserve-Resource

    Mining Business Digest. May 1994. P. 5.

  • Workings

    Hardwick,W R,1963, Mining Methods and Costs, Inspiration Con-

  • Deposit

    Arizona Pay Dirt. Inspiration Raising Production Reducing

  • Production

    Mcmahon,A D,1965, Copper: A Materials Survey: Us Bumines

  • Reserve-Resource

    Cyprus Amax Minerals Co., 1993 Form 10-K, P.7.

  • Production

    Paydirt, Aug. 25, 1975, P. 46. (Water Source)

  • Geology

    Olmstead, H.W., and Johnson, D.W., 1966, Inspiration geology, in Titley, S.R., and Hicks, C.L., eds., Geology of the porphyry copper deposits, southwestern North America: Tucson, University of Arizona Press, p. 143?150.

  • Deposit

    Arizona Pay Dirt. Inspiration To Spend Record $70 Million

  • Workings

    Inspiration Consolidated Copper Company. 1960-1977 Annual

  • Production

    Coakley,G J,1976, Selenium, In Mineral Facts and Problems

  • Geology

    Peterson,N P,1962, Geology and Ore Deposits Of The Globe-Miami district, Arizona: U.S. Geological Survey Professional Paper 342, 151 p.

  • Deposit

    Engineering And Mining Journal. Polyethylene Pipe Plays Key

  • Workings

    World Mines Register. 1976/77 Edition, Published By World

  • Reserve-Resource

    Cyprus Amax Minerals Co., 1994 Form 10-K, P.2.

  • Geology

    Ransome,F L,1919, The Copper Deposits Of Ray and Miami, Ari-

  • Deposit

    Hudson Bay Mining And Smelting Co. 1980 Annual Report.

  • Production

    Arizona Department of Mines and Mineral Resources 2007 Report. Accessed 15-JUL-2009
    http://www.admmr.state.az.us/Info/mining_update2007.pdf

  • Reserve-Resource

    Cyprus Amax Minerals Company, Form 10-K. December 31, 1995.

  • Geology

    Reed,E F, and Simmons,W W,1962, Geological Notes On The Miami-

  • Deposit

    Bilson, E., A.J. Savely, And J. Housewert. Hydrometallurgy

  • Geology

    Sheffer,H W and Evans,L G,1968, Copper Leaching Practices In

  • Deposit

    Skillings Mining Review. Cyprus Minerals Plans To Buy

  • Deposit

    Timmers, J., J. Fountain, And J. Housewert. New Hydromet

  • Geology

    Seedorff, E., Barton, M. , Stavast, W. and Maher D., 2008, Root Zones of Porphyry Systems: Extending the Porphyry Model to Depth: Econ. Geol. Vol 103 no, 5.

  • Geology

    Hammer, D.F., and Peterson, D.W., 1968, Geology of the Magma mine area, Arizona, in Ridge, J.D., ed., Ore Deposits of the United States, 1933?1967 (Graton-Sales Volume): New York, American Institute of Mining, Metallurgical, and Petroleum Engineers, v. 2, p. 1282?1310

  • Deposit

    Lachapelle, G.W., Dyas, J.S., Cyprus Miami Property Overview

  • Deposit

    La Chapelle, G. W. And J. S. Dya. Cyprus Miami Property

  • Geology

    Breitrick, R.A., and Lenzi, G.W., 1987, Pinto Valley copper deposit: Arizona Bureau of Geology and Mineral Technology, Geological Survey Branch, Special Paper 5, p. 260?265

  • Deposit

    Cyprus Amax Minerals Co., News Release, 1/27/94, 1pp.

  • Geology

    Sell, J.D., 1995, Discovery of a deep (3500 feet) unexposed porphyry copper deposit at Superior East, Pinal County, Arizona: Arizona Geological Society Digest 20, p. 373?395

  • Deposit

    Mining Record, V 106/N 28, 7/12/95, P.7.

  • Geology

    Manske, S.L., and Paul, A.H., 2002, Geology of a major new porphyry copper center in the Superior (Pioneer) district, Arizona: ECONOMIC GEOLOGY, v. 97, p. 197?220

  • Geology

    Maher, D.J., Stavast, W.J.A., Barton, M.D., and Seedorff, E., 2005, A view of the roots of a productive Laramide porphyry copper system exposed in the Globe-Miami district, Arizona [abs.]: Geological Society of America Abstracts with Programs, v. 37, no. 7, p. 164

  • Geology

    Stavast, W.J.A., 2006, Three-dimensional evolution of magmatic hydrothermal systems, Schultze Granite and Ruby Star Granodiorite, Arizona: Unpublished Ph. D. dissertation, University of Arizona, 414 p.

  • Geology

    Creasey S C 1980 - Chronology of intrusion and deposition of porphyry copper ores, Globe-Miami district, Arizona: in Econ. Geol. v75 pp 830-844

  • Deposit

    Abm File Data.

  • Deposit

    Elsing And Heineman, 1936, Arizona Bureau Of Mines Bulletin 140.

  • Deposit

    Simmons And Reed, 1962, Az Geol Soc 13th Field Conf-Mogollon Rim.

  • Deposit

    Inspiration Consolidated Copper Company Annual Report, 1966.

  • Deposit

    Phillips, K.A., Beard, R.R., Niemuth, N.J., And Bain, D.R., 1991, Active Mines In Arizona--1992: Arizona Department Of Mines And Mineral Resources Directory 39, 20 P.

  • Deposit

    Arizona Department Of Mines And Mineral Resources, 1989, Directory Of Active Mines In Arizona, Incorporating Sand And Gravel Operations--1989-90: Arizona Department Of Mines And Mineral Resources Directory 36, 14 P.

General comments

Subject category Comment text
Deposit Cyprus Miami Properties Consist Of: Live Oak, Thornton, Joe Bush, Willow Springs, Bluebird, And Ox Hide Mines. The Bluebird Copper Property File (Seq. No. 0040070007) And The Ox Hide Property File (Seq. No. 0040070060) Have Now Been Merged (5,92) Into The Inspiration Property File, Now Known As The Cyprus Miami Mine, Because These Three Properties Are Now Mined As One Integrated Mining Operation By Cyprus Minerals.
Deposit Supergene Enriched Zone Averages 200 Ft Thick. Higher Grade Mineralization Occurs As Bands Along Miami And Pinto Faults Between Joe Bush And Bulldog Faults. Molybdenite Was Last Stage Of Hypogene Mineralization.

Reporter information

Type Date Name Affiliation Comment
Reporter 12-NOV-96 Hite, Alan G. U.S. Bureau of Mines
Reporter 01-MAY-83 Peterson, Jocelyn A. U.S. Geological Survey
Updater 01-OCT-92 Orris, Greta J. U.S. Geological Survey
Updater 13-JUN-09 Anderson, Claire U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Current status (per MSHA)

StatusActive since 03/09/2010
MSHA mine ID0200112
Mine name (MSHA)Freeport McMoRan Miami Inc
Current operatorFreeport McMoRan Miami Inc
Current controller (parent)Freeport-McMoRan Inc
Mine typeSurface (Metal / non-metal)

MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.

Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.

Operator history (post-MRDS)

MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:

  • Cyprus Amax Minerals Co. — now part of Subsidiary of Freeport-McMoRan (2007)
    Formed by merger of Cyprus Minerals and AMAX in 1993; acquired by Phelps Dodge in 1999; Phelps Dodge acquired by Freeport-McMoRan in 2007.

Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.

Maps centered on this site

Authoritative Arizona resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.