Mica-Beryl Mine

The Mica-Beryl Mine is a feldspar and mica mine located in Chaffee county, Colorado at an elevation of 9,600 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

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Site Name

Primary: Mica-Beryl Mine

Commodity

Primary: Feldspar
Primary: Mica
Secondary: Tantalum
Secondary: Niobium (Columbium)
Secondary: REE
Secondary: Beryllium
Tertiary: Marble, Dimension

Location

State: Colorado
County: Chaffee
District: Turret District

Land Status

Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Not available

Workings

Type: Unknown

Ownership

Owner Name: Edgar And Edmond Riegel, Elbert Davidson, Edgar Ingham
Years: 1950 -

Owner Name: Mr. Strah
Home Office: Salida, Co.
Years: 1944 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Discovery Year: 1941
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains

Mineral Deposit Model

Not available

Orebody

Form: LENSOID

Structure

Type: R
Description: Southern Mosquito Range, Thirtynine Mile Volcanic Field, Arkansas Valley Graben

Type: L
Description: E-W-Trending Faults, Fault Blocks

Alterations

Not available

Rocks

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic

Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Neoproterozoic

Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Mississippian

Analytical Data

Not available

Materials

Ore: Microcline
Ore: Muscovite
Ore: Beryl
Ore: Marble
Gangue: Quartz
Gangue: Plagioclase

Comments

Comment (Deposit): WALL ZONE: QUARTZ-MICROCLINE-MUSCOVITE-PLAGIOCLASE, 3-5 FT THICK; INTERMEDIATE ZONE: MUSCOVITE-PLAGIOCLASE-BERYL, 2-3 FT THICK; CORE: MICROCLINE-QUARTZ, 25-FT WIDE AVERAGE; MARBLE REPORTED-POSSIBLY SEPARATE QUARRY

Comment (Location): ABOUT 0.5 MILE WEST OF MARBLE QUARRY GULCH, TO SE OF GREEN MOUNTAIN, ON FLAT BENCH ; INFO FROM LAND.ST :(1976)

Comment (Commodity): GREENISH-BLUE, SUBHEDRAL TO EUHEDRAL BERYL, PRACTICALLY FREE OF INCLUSIONS; COLUMBITE-TANTALITE MASSIVE, LARGE SIZE; POTASH FELDSPAR IN CORE HIGH QUALITY

Comment (Workings): ELONGATE OPEN CUT 160 X 35 X 14; 5 PROSPECT PITS (SEARCHING FOR GOLD)

References

Reference (Deposit): HANLEY, J.B., HEINRICH, E.W., PAGE, L.R., 1950, PEGMATITE INVESTIGATIONS IN COLORADO, WYOMING, AND UTAH, 1942-1944: USGS PROFESSIONAL PAPER 227, P. 23-27

Reference (Deposit): SCOTT, G.R., TAYLOR, R.B., EPIS, R.C. AND WOBUS, R.A., 1978, GEOLOGIC MAP OF THE PUEBLO 1 DEG X 2 DEG QUADRANGLE, SOUTH-CENTRAL COLORADO: USGS MAP I-1022, 1:250,000

Reference (Deposit): ARGALL, G.O., JR., 1949, INDUSTRIAL MINERALS OF COLORADO: COLORADO SCHOOL OF MINES QUARTERLY, V. 44, NO. 2, P. 52.

Reference (Deposit): PARKER, R.L., 1963, NIOBIUM AND TANTALUM IN THE UNITED STATES: USGS MAP MR-36

Reference (Deposit): VAN DIVER, B.B., 1957, GEOLOGY OF THE CALUMET MINING DISTRICT, CHAFFEE COUNTY, COLORADO: UNIVERSITY OF COLORADO THESIS, P. 83.

Reference (Deposit): BOARDMAN, S.J., 1976, GEOLOGY OF THE PRECAMBRIAN METAMORPHIC ROCKS OF THE SALIDA AREA, CHAFFEE COUNTY, COLORADO: THE MOUNTAIN GEOLOGIST, V. 13, NO. 3, P. 89-100.

Reference (Deposit): BOARDMAN, S.J., 1971, PRECAMBRIAN GEOLOGY AND MINERAL DEPOSITS OF THE SALIDA AREA, CHAFFEE COUNTY, COLORADO: PH.D. THESIS, UNIVERSITY OF MICHIGAN, 131 P.

Reference (Production): PARKER, R.L. (1963)

Colorado Mining Photos

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