Muscovite from Larimer County, Colorado, USA

Muscovite

Hyatt Ranch Mine, Crystal Mountain Pegmatite Mining District, Larimer County, Colorado, USA

Muscovite

Hyatt Ranch Mine, Crystal Mountain Pegmatite Mining District, Larimer County, Colorado, USA

Muscovite

Hyatt Ranch Mine, Crystal Mountain Pegmatite Mining District, Larimer County, Colorado, USA


USA
Colorado Larimer County Crystal Mountain Pegmatite Mining District (Storm Mountain Mining District) ⓘ Beryl No. 5 Prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Hanley, J.B., Heinrich, E.W., Page, L.R. (1950) Pegmatite investigations in Colorado, Wyoming, and Utah, 1942-1944. Professional Paper 227. US Geological Survey doi:10.3133/pp227
ⓘ Big Boulder Mine (Big Boulder Beryl Mine)	Hanley, J.B., Heinrich, E.W., Page, L.R. (1950) Pegmatite investigations in Colorado, Wyoming, and Utah, 1942-1944. Professional Paper 227. US Geological Survey doi:10.3133/pp227 Rocks & Min.:62:234-235.
ⓘ Buckhorn Mica Mine (Claim: Emerald Gem)	[var. Sericite] (2005) Mineral Resources Data System (MRDS), US Geological Survey. Hanley, J.B., Heinrich, E.W., Page, L.R. (1950) Pegmatite investigations in Colorado, Wyoming, and Utah, 1942-1944. Professional Paper 227. US Geological Survey doi:10.3133/pp227
ⓘ Bull Elk Beryl Crystal #1 Mine (Bull Elk Mine; Thodab Mine)	Rocks & Min.:57:53-54.
ⓘ Corral Pole Mine (Corral Pole No. 2 Quarry)	Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 30 (Table A-1).
ⓘ Crystal Mountain	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Crystal Silica Mine	Hanley, J.B., Heinrich, E.W., Page, L.R. (1950) Pegmatite investigations in Colorado, Wyoming, and Utah, 1942-1944. Professional Paper 227. US Geological Survey doi:10.3133/pp227 Rocks & Min.:62:231 & 234-235.
ⓘ Double Opening Prospect	Hanley, J.B., Heinrich, E.W., Page, L.R. (1950) Pegmatite investigations in Colorado, Wyoming, and Utah, 1942-1944. Professional Paper 227. US Geological Survey doi:10.3133/pp227
ⓘ Eureka Group	Maneotis: 2008 Mathew Maneotis
ⓘ Giant Crystal Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ HG & S No. 3 Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Humphrey Beryl Prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Hanley, J.B., Heinrich, E.W., Page, L.R. (1950) Pegmatite investigations in Colorado, Wyoming, and Utah, 1942-1944. Professional Paper 227. US Geological Survey doi:10.3133/pp227
ⓘ Hyatt Ranch Mine (Hyatt Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Hanley, J.B., Heinrich, E.W., Page, L.R. (1950) Pegmatite investigations in Colorado, Wyoming, and Utah, 1942-1944. Professional Paper 227. US Geological Survey doi:10.3133/pp227
ⓘ Langston Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Lewis Beryl Prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Hanley, J.B., Heinrich, E.W., Page, L.R. (1950) Pegmatite investigations in Colorado, Wyoming, and Utah, 1942-1944. Professional Paper 227. US Geological Survey doi:10.3133/pp227
ⓘ Lodge Pole Mine (Silica Beryl; Thodab No. 1; Claims: Lodge Pole)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Mica - Beryl Prospect	Hanley, J.B., Heinrich, E.W., Page, L.R. (1950) Pegmatite investigations in Colorado, Wyoming, and Utah, 1942-1944. Professional Paper 227. US Geological Survey doi:10.3133/pp227
ⓘ Mica - Beryl Prospect (MRDS - 10087859)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Mica Dike Claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ New Hope claims	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Pan Claims	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Primorose Beryl Lode	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Tantalum Prospect (MRDS - 10087861)	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Hanley, J.B., Heinrich, E.W., Page, L.R. (1950) Pegmatite investigations in Colorado, Wyoming, and Utah, 1942-1944. Professional Paper 227. US Geological Survey doi:10.3133/pp227
ⓘ Wisdom Ranch Prospect	Hanley, J.B., Heinrich, E.W., Page, L.R. (1950) Pegmatite investigations in Colorado, Wyoming, and Utah, 1942-1944. Professional Paper 227. US Geological Survey doi:10.3133/pp227
ⓘ Drake	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Horsetooth Mountain Area	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Mayesville Mining District	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Big Mica Beryl Prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Chaney - Sims Beryl Prospects	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Hanley, J.B., Heinrich, E.W., Page, L.R. (1950) Pegmatite investigations in Colorado, Wyoming, and Utah, 1942-1944. Professional Paper 227. US Geological Survey doi:10.3133/pp227

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