Fluorine Vein Properties

Past Producer in Jackson county in Colorado, United States with commodities Fluorine-Fluorite, Calcium, Silica, Manganese
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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Mineral rights holdings
  14. Land status
  15. Ownership information
  16. Production statistics
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10215435
MRDS ID W006939
MAS/MILS ID 0080570030
Record type Site
Mineralized Area Northgate
Current site name Fluorine Vein Properties
Alternate or previous names Fluorine Mine, Fluorine Vein, Fluorine Pit, Whale Pit, Fluorite Nos 1 - 8
Included sites Northgate, Northgate Fluorspar, Fluorine-Camp Creek Vein

Comments on the site identification

  • Do not confuse the Fluorine Vein properties with the Fluorspar Vein properties. Fluorine vein is SE of and continuous with the Camp Creek vein. The Fluorspar Vein properties are about 1 to 1 1/2 miles west.

Comments on the site names

  • Previous record D002496 (newMRDS 10107820) was for "Fluorite Nos 1 - 8". Only reference was to Stevens, Bull. 1082F. There is no mention of claims with these numbers in that volume.

Geographic coordinates

Point of reference Geographic coordinates: Elevation UTM Precision Relative position Point location
Main Entrance -106.24395, 40.93914 (WGS84) 2791 100 Location of pit on topo. Probably the Baker Pit. Property extends almost entirely diagonally (NW-SE) across Section 10. Pits shown on topo are part of this property. As is the shaft on the topo (probably the Fluorine Shaft No. 1).
(click for info)
Main Entrance -106.24306, -40.93778 (WGS84) 10 Shaft on topo is Bureau of Mines exploratory shaft, also known as Fluorine No. 1 shaft.

Site location context

Political divisions (FIPS codes)

Jackson(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Kings Canyon(quadrangle 1:24,000 scale)

Walden(quadrangle 1:100,000 scale)

Craig(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

North Platte Headwaters(hydrologic unit)

North Platte(hydrologic accounting unit)

North Platte(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Medicine Bow-Routt National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Colorado Jackson

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 011 N 079 W 10 Colorado

Comments on the location information

  • Claims may extend a few tens of feet across the NE corner of Sec. 15 and NW corner of Sec. 14.

Commodities

Commodity Importance
Fluorine-Fluorite Critical Primary
Calcium Tertiary
Silica Tertiary
Manganese Critical Tertiary

Materials information

Materials Type of material
Barite Unknown
Chalcedony Unknown
Fluorite Unknown
Limonite Unknown
Microcline Unknown
Pyrite Unknown
Quartz Unknown

Analytical data

Result abundant data in RI-4106.

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
    Rock unit name Gneiss complex
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name quartz monzonite

Nearby scientific data

Main Entrance (1) -106.24395, 40.93914
Main Entrance (2) -106.24306, -40.93778

Economic information

Ore body information

  • Strike N43W
    Dip 75E
    Thickness 9M
    Length 1340M
    Width 6M
    Depth to top 122M
    Field Value
    MAS Matrix # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 LENTICULAR
    Type of Orebody #2 SHEAR ZONE
    Shape of Orebody #2 IRREGULAR
    Type of Orebody #3 BRECCIA FILL
    Shape of Orebody #3 TABULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FRACTURING
    Secondary Ore Control FAULTING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 SERICITIC
    Strike And Dip N43W:75E
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 3
    Min. Thick. Unconsol. Mat. .6
    Date of Last Modification 820929
  • Area 94HA
    Field Value
    Total Surface Area (HA) 94
    Date of Last Modification 910418

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Both
Significant Yes
Discovery year 1925
Mining method Shrinkage Methods
Year of first production 1943
Milling method Flotation

Mining district

District name Northgate

Mineral rights holdings

Type of mineral rights Patented
Type of mineral rights Located Claim

Land status

Ownership category Federal

Ownership information

  • Type Owner-Operator
    Owner Ozark-Mahoning Co. (Pennwalt Corp. Subsidiary)
    Interest 100
    Home office Oklahoma
    Year 1982
  • Type Owner-Operator
    Owner Western Fluorspar Corp.
    Year 1947
    First year 1943

Comments on the ownership information

  • The Fluorine Mine (on the Fluorine claims) was purchased by Western Fluorspar Corp. (owner of the Fluorspar properties about 1 to 1-1/2 mi west) in 1943. The Baker Pit is on the Fluorine property.

Production statistics

  • Year 1943
    Period 1943
    Material reported as 10,387 tons (converted to metric tons, above= 9,423 mt). Approx. grade <50% CaF2.
    Ore mined 9423mt
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary CaF2 Fluorine-Fluorite Fluorine 50wt-pct

Comments on the production information

  • ACTUAL RECOVERIES FOR THE ACID GRADE FLUORSPAR CONCENTRATE (PA) AND THE BRIQUETTES (PB) ARE 44.5 AND 43.6 PERCENT, RESPECTIVELY, FOR THE FLOURSPAR. ACTUAL SIO2 ORE-TO-CONCENTRATE RECOVERY FOR CONCENTRATE-TO- BRIQUETTE RECOVERY IS 0.306 PERCENT. SIO2 IS EXPECTED TO INCREASE FROM THE FLUORSPAR CONCENTRATE TO THE BRIQUETTES BECAUSE OF IMPURITY SIO2 CONTAINED IN THE CA(OH)2 ADDED AS ONE OF THE BRIQUETTE BINDER MATERI- ALS.

Comments on the reserve resource information

  • NO PUBLISHED OZARK-MAHONING RESERVE DATA COULD BE FOUND AT THE TIME OF THIS 1982 MAS PROPERTY EVALUATION.

Workings at the site

  • Type of workings Underground
    Length 790M
    Overall depth 48M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method SHRINKAGE METHODS
    Swell Factor .33
    Percent Waste Rock 0
    Percent Recovery 90
    Hardness of Rock HARDROCK FISSURED WITH MODERATE WATER
    Rock Characteristics NO PLANES OF WEAKNESS
    Rock Support Chars. SUPPORTING
    Mine Support Chars. TIMBER
    Number of Shafts 1
    Avg. Length of Adits (m) 100
    1st Condition of Workings UNKNOWN
    Capacity 302
    Capacity Units MT ORE/DAY
    Unit Production Cost 31.88
    Units of Production $/MT ORE
    Operating Days per Year 312
    Operating Shifts per Day 2
    Year of Information 1982

Comments on the workings information

  • CLAIM PATENT DESCRIPTIONS DESCRIBE THE MINING DISTRICT AS THAT OF COPPER RIDGE, A NAME FORMERLY APPLIED TO A LARGE, INDEFINITE AREA IN NORTHERN COLORADO AND SOUTHERN WYOMING. THIS NAME HAS BEEN DROPPED FROM LOCAL USAGE, AND THE MORE RESTRICTED AREA IN THE VICINITY OF THE FLUORSPAR DEPOSITS NOW IS CALLED THE NORTHGATE DISTRICT, AFTER THE SHIPPING POINT OF NORTHGATE ON THE UNION PACIFIC RAILROAD.

Reference information

Bibliographic references

  • Deposit

    CARLSON, J. W., 1970, OZARK-MAHONING COMPANY, NORTHGATE, COLORADO: DECO TREFOIL, DENVER EQUIPMENT DIVISION, JOY MANUFACTURING COMPANY, SUMMER 1970 ISSUE, P. 9-16.

  • Deposit

    COLO. SCH. OF MINES QUART., V. 44, NO. 2, P. 187.

  • Deposit

    Steven, T.A., 1960, Geology and fluorspar deposits, Northgate district, Colorado: USGS Bull. 1082-F, p. 323-422.

  • Deposit

    WARNE, J. D., 1947, NORTHGATE FLUORSPAR, JACKSON COUNTY, COLO.: U.S. BUREAU OF MINES RESEARCH INVESTIGATIONS RI-4106, 23 p.

  • Deposit

    CONSV. DIV. COMP. DATE, 1,62.

  • Deposit

    Van Alstine, R.E., 1947, Fluorspar Investigations -- Northgate District, Jackson County, in Vanderwilt, J.W., Mineral Resources of Colorado: State of Colorado Mineral Resources Board, p. 457-465.

  • Deposit

    Cox, D.C., Benson, W.E.B., Steven, T.A., and Van Alstine, R.E., 1948, Flurospar deposits of the Northgate District, Jackson County, Colorado: U.S. Geological Survey Strategic Minerals Investigations Report 3-220, 14 p. [(200)St8pr no.3-220]

General comments

Subject category Comment text
Deposit THE FIRST COMPLETE INTERMOUNTAIN FIELD OPERATION CENTER (IFOC) EVALUATION OF THIS PROPERTY WAS COMPLETED DURING 1982 IFOC, DENVER, COLORADO 80225. NO IFOC INSPECTION OF THIS FACILITY WAS MADE PRIOR TO OR DURING THIS EVALUATION.
Deposit Fluorine-Camp Creek vein is the same vein.

Reporter information

Type Date Name Affiliation Comment
Reporter 02-MAR-95 Witkowsky, Dan U.S. Bureau of Mines
Reporter 16-JUN-11 Wilson, Anna B U.S. Geological Survey Merged duplicate records. DC01734=newMRDS 10108131, D002496 = newMRDS 10107820, merged and deleted.
Reporter 01-DEC-72 Conservation Division Files U.S. Geological Survey DC01734=newMRDS 10108131
Reporter 01-MAY-77 Hasler, J. William U.S. Geological Survey D002496 = newMRDS 10107820

Beyond USGS

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

Authoritative Colorado resources

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