1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Browns Canyon Fluorspar Area

Past Producer in Chaffee county in Colorado, United States with commodity Fluorine-Fluorite
Map
XML
JSON
KML
B
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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Ownership information
  15. Production statistics
  16. Reserves and resources
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. Reporter information

Geologic information

Identification information

Deposit ID 10214542
MRDS ID D010255
MAS/MILS ID 0080150052
Record type Deposit
Current site name Browns Canyon Fluorspar Area
Related records 10013778

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -106.077, 38.6431 (WGS84)
Elevation 2315
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Chaffee(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Nathrop(quadrangle 1:24,000 scale)

Gunnison(quadrangle 1:100,000 scale)

Montrose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Arkansas Headwaters(hydrologic unit)

Upper Arkansas(hydrologic accounting unit)

Upper Arkansas(hydrologic subregion)

Arkansas-White-Red(hydrologic region)

Geographic areas

Country State County
United States Colorado Chaffee

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 051 N 008 E 27 Colorado

Commodities

Commodity Importance
Fluorine-Fluorite Critical Primary

Materials information

Materials Type of material
Barite Unknown
Calcite Unknown
Chalcedony Unknown
Fluorite Unknown
Hematite Unknown
Kaolinite Unknown
Limonite Unknown
Manganite Unknown
Marcasite Unknown
Montmorillonite Unknown
Opal Unknown
Psilomelane Unknown
Pyrite Unknown
Pyrolusite Unknown
Quartz Unknown

Nearby scientific data

Ore Body (1) -106.077, 38.6431
ListMap

Economic information

Ore body information

  • Thickness 1.7M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SHEAR ZONE
    Shape of Orebody #1 IRREGULAR
    Type of Orebody #2 BRECCIA FILL
    Shape of Orebody #2 OTHER
    Type of Orebody #3 REPLACEMENT
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Secondary Ore Control FRACTURING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 SILICIFICATION
    Type of Wallrock Alter. #2 OTHER
    Type of Wallrock Alter. #3 INTERM ARGILLIC
    Minimum Depth to Top 0
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 820817
  • Area 350HA
    Field Value
    Total Surface Area (HA) 350
    Date of Last Modification 910418

Comments on the geologic information

  • FLUORSPAR CONCENTRATE IN RECORD A IS CERAMIC GRADE.

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Non-metallic
Deposit size Medium
Significant Yes
Discovery year 1923
Mining method Shrinkage Methods - Overhand Shrinkage
Year of first production 1929
Milling method Flotation

Mining district

District name Browns Canyon District

Mineral rights holdings

Type of mineral rights Patented
Type of mineral rights Located Claim
Type of mineral rights Private Lease

Land status

Ownership category Mixed

Ownership information

  • Type Owner
    Owner Allied Chemical Corp., General Chemical Division
    Home office New Jersey
    Year 1981
  • Type Owner
    Owner Commercial Minerals, Inc.
    Home office Colorado
    Year 1979
  • Type Owner
    Owner E., J., And G. Corp.
    Home office Colorado
    Year 1981
  • Type Owner
    Owner Lionelle, J. H.
    Home office Colorado
    Year 1979
  • Type Owner
    Owner James Bopp
    Home office Colorado
    Year 1945

Comments on the ownership information

  • PERCENT OF OWNERSHIP IN RECORDS 01-05 IS UNKNOWN.

Production statistics

  • Year 1949
    Period 1929-1949
    Description Total Fluor. Cons. Produced (1929-1949) 117910 Metric Tons
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Fluorine-Fluorite Fluorine 117910mt

Reserves and resources

  • Type In-situ
    Estimate year 1969
    Indicated 362800mt ore
    Demonstrated 362800mt ore
    Inferred 1496550mt ore
    Total resources 1859350mt ore
    Commodity Subtype Grade units Group Importance Year
    Fluorine-Fluorite CaF2 25.85 wt-pct Fluorine Major 1969

Comments on the reserve resource information

  • ACTUAL PUBLISHED FIGURE FOR INDICATED (INCLUDES MEASURED) RESERVES IN RECORD 1 = 400,000 TONS (SHORT). ACTUAL PUBLISHED FIGURE FOR INFERRED RESERVES IN RECORD 1 = 1,650,000 TONS (SHORT). ACCORDING TO LATEST PUBLISHED INFORMATION, RESERVES GRADE AVERAGES 50% CAF2 (FOR 362,800 METRIC TONS OF ORE) AND 20% CAF2 (FOR 1,496,550 METRIC TONS OF ADDITIONAL ORE); THEREFORE, GRADE FOR CAF2 IN RECORD 1 IS ACTUALLY A WEIGHTED AVERAGE CALCULATED FROM THESE LATEST PUBLISHED DATA.

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OVERHAND SHRINKAGE 10-67
    Swell Factor .6
    Percent Waste Rock 15.1
    Percent Recovery 85
    Hardness of Rock HARDROCK FISSURED WITH MODERATE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING
    Mine Support Chars. TIMBER
    Number of Shafts 11
    Number of Inclines 2
    Number of Adits 12
    Capacity 180
    Capacity Units MT ORE/DAY
    Unit Production Cost 32.32
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 2
    Year of Information 1981

Reference information

Bibliographic references

  • Reserve-Resource

    VAN ALSTINE, R. E. GEOLOGY AND MINERAL DEPOSITS OF THE PON-

  • Reserve-Resource

    CHA SPRINGS NE QUADRANGLE, CHAFFEE COUNTY, COLORADO, WITH

  • Reserve-Resource

    A SECTION ON FLUORSPAR MINES AND PROSPECTS, BY R. E. VAN

  • Reserve-Resource

    ALSTINE AND D. C. COX. U.S. GEOLOGICAL SURVEY PROF. PAPER

  • Reserve-Resource

    626, 1969, 52 PP.

  • Deposit

    ARGALL, G. O., JR. INDUSTRIAL MINERALS OF COLORADO. COLO-

  • Deposit

    RADO SCH. MINES QUART., V. 44, NO. 2, 1949, 477 PP.

  • Deposit

    BATTY, J. V., R. HAVENS, AND R. R. WELLS. CONCENTRATION OF

  • Deposit

    COLORADO FLUORITE ORES. BUMINES RI 4139, 1947, 28 PP.

  • Deposit

    DECO TREFOIL MAGAZINE. FLOWSHEET FOR FLUORSPAR RECOVERY.

  • Deposit

    FLOWSHEET STUDY BULL. M7-F16, JANUARY-FEBRUARY 1952, 2

  • Deposit

    PP.

  • Deposit

    LINTNER, R. E. COLORADO FLUORSPAR MINES, INCORPORATED, SA-

  • Deposit

    LIDA, COLORADO. DECO TREFOIL MAGAZINE, ENGINEERING NOTE-

  • Deposit

    BOOK BULL. M4-B47, NOVEMBER-DECEMBER 1947, 8 PP.

  • Deposit

    1944 MINING YEAR BOOK. COLORADO MINING ASSOCIATION, 1944,

  • Deposit

    PP. 28-31.

  • Deposit

    1946 MINING YEAR BOOK. COLORADO MINING ASSOCIATION, 1946,

  • Deposit

    PP. 43-47.

  • Deposit

    QUAN, C. K. FLUORINE. BUMINES MCP-20, AUGUST 1978, 27 PP.

  • Deposit

    SEETON, F. A. FLUORSPAR METALLURGY AND FLOWSHEETS. DECO

  • Deposit

    TREFOIL MAGAZINE, ENGINEERING NOTEBOOK BULL. G3-B148,

  • Deposit

    WINTER ISSUE, 1969-1970, 12 PP.

  • Deposit

    U.S. BUREAU OF MINES. IN-HOUSE MINERAL PROPERTY FILES (NOS.

  • Deposit

    25.8-25.13, 25.15, AND 25.35) CONTAINING PROPRIETARY AND

  • Deposit

    UNPUBLISHED INFORMATION RELATING TO MINING PROPERTIES

  • Deposit

    WITHIN THE BROWNS CANYON FLUORSPAR DISTRICT.

  • Deposit

    U.S. GEOLOGICAL SURVEY. GEOLOGICAL SURVEY RESEARCH 1964.

  • Deposit

    U.S. GEOLOGICAL SURVEY PROF. PAPER 501-A, 1964, 367 PP.

  • Deposit

    -----. MONTROSE QUADRANGLE (TOPOGRAPHIC MAP), COLORADO. 1

  • Deposit

    DEG. X 2 DEG. SERIES, 1977 REV., SCALE 1:250,000.

  • Deposit

    -----. PONCHA SPRINGS QUADRANGLE (TOPOGRAPHIC MAP), COLO-

  • Deposit

    RADO--CHAFFEE CO. 15 MINUTE SERIES, 1956, SCALE

  • Deposit

    1:62,500.

  • Deposit

    VAN ALSTINE, R. E. FLUORSPAR INVESTIGATIONS, IN MINERAL RE-

  • Deposit

    SOURCES OF COLORADO, ED. BY J. W. VANDERWILT. COLORADO

  • Deposit

    MINERAL RESOURCES BOARD, 1947, PP. 457-465.

  • Deposit

    -----. FLUORSPAR, IN MINERAL AND WATER RESOURCES OF COLO-

  • Deposit

    RADO. REPORT FOR SENATE COMMITTEE ON INTERIOR AND INSU-

  • Deposit

    LAR AFFAIRS. 88TH CONG., 2D SESS., COMM. PRINT, 1964,

  • Deposit

    PP. 160-165.

  • Deposit

    -----. GEOCHEMICAL PROSPECTING IN THE BROWNS CANYON FLUOR-

  • Deposit

    SPAR DISTRICT, CHAFFEE COUNTY, COLORADO. U.S. GEOL. SUR-

  • Deposit

    VEY PROF. PAPER 525-D, 1965, PP. D59-D64.

  • Deposit

    RECK, W. H. KRAMER MINES, INC. DECO TREFOIL MAGAZINE, EN-

  • Deposit

    GINEERING NOTEBOOK BULL. M4-B28, MAY 1943, 12 PP.

Reporter information

Type Date Name Affiliation Comment
Reporter 02-MAR-95 Osmonson U.S. Bureau of Mines
Editor 16-NOV-11 Wilson, Anna B U.S. Geological Survey Changed from record type from district to deposit

Beyond USGS

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

Maps centered on this site

Authoritative Colorado resources

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