Mine detail: Crystal No. 8 Mine

Previously called 'No. 8 Mine'

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Location: Chaffee County, Colorado, United States, North America
Lat / long: 38.82917, -106.02421
dep_id: 10013702
mrds_id: D010133
Commodity type: metallic and nonmetallic
Major mineral: Feldspar
Minor mineral: REE
Operation type: Unknown
Production size: Small ammount of material produced
Development status: Past Producer
ore: Allanite, Euxenite, Microcline
gangue: Biotite, Garnet, Plagioclase, Quartz
orebody_fm: LENTICULAR
work_type: Unknown
Reporter: Collins, Donna B.
hrock_type: Granite
arock_unit: Granitic Rocks
arock_type: Granite
Structure: Mosquito Range, Arkansas Valley Graben, Nw-Trending Faults
tectonic: Central Cordillera (Southern Rocky Mountains)
References:
  • 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
  • Deposit:: ARGALL, G.O., JR., 1949, INDUSTRIAL MINERALS OF COLORADO: COLORADO SCHOOL OF MINES QUARTERLY, V. 44, NO. 2, P. 161.
  • 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
  • Reserve-Resource:: HANLEY, J.B., 1950
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