Crystal No. 8 Mine

The Crystal No. 8 Mine is a feldspar mine located in Chaffee county, Colorado at an elevation of 8,799 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

Name: Crystal No. 8 Mine  

State:  Colorado

County:  Chaffee

Elevation: 8,799 Feet (2,682 Meters)

Primary Mineral: Feldspar

Lat, Long: 38.82917, -106.02361

Map: View on Google Maps

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.


Satelite image of the Crystal No. 8 Mine

Crystal No. 8 Mine MRDS details

Site Name

Primary: Crystal No. 8 Mine
Secondary: No. 8 Mine


Commodity

Primary: Feldspar
Secondary: REE


Location

State: Colorado
County: Chaffee
District: Trout Creek Pass Area


Land Status

Land ownership: Private
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: M And S, Inc.
Home Office: Denver, Co.
Years: 1950 -


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
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: LENTICULAR


Structure

Type: R
Description: Mosquito Range, Arkansas Valley Graben

Type: L
Description: Nw-Trending Faults


Alterations

Not available


Rocks

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

Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic

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


Analytical Data

Not available


Materials

Ore: Euxenite
Ore: Microcline
Ore: Allanite
Gangue: Garnet
Gangue: Biotite
Gangue: Plagioclase
Gangue: Quartz


Comments

Comment (Location): JUST S OF INTERSECTION OF TROUT CREEK AND SHIELDS GULCH; ABOUT 0.5 MILE SOUTH OF HIGHWAY 24 ; INFO FROM LAND.ST :(1976)

Comment (Reserve-Resource): RESERVES COULD BE GREATER THAN INDICATED

Comment (Deposit): 2 ZONES: CORE IS QUARTZ-MICROCLINE-PLAGIOCLASE PEGMATITE; BORDER ZONE SAME MINERALS PLUS DARK-RED GARNET

Comment (Workings): IRREGULAR, TWO-LEVEL OPEN-CUT WITH ADDITIONAL SMALL PITS, CROSSCUTS; ONE SHORT, NARROW ADIT


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. 21-22

Reference (Deposit): ARGALL, G.O., JR., 1949, INDUSTRIAL MINERALS OF COLORADO: COLORADO SCHOOL OF MINES QUARTERLY, V. 44, NO. 2, P. 161.

Reference (Deposit): TWETO, O.L. STEVEN, T.A., HAIL, W.J., JR., MOENCH, R.H., 1976, PRELIMINARY GEOLOGIC MAP OF THE MONTROSE 1 X 2 QUADRANGLE, SOUTHWESTERN COLORADO: USGS MAP MF-761, 1:250,000

Reference (Reserve-Resource): HANLEY, J.B., 1950