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Muscovite from
Big Boulder Mine (Big Boulder Beryl Mine), Crystal Mountain Pegmatite Mining District (Storm Mountain Mining District), Larimer County, Colorado, USA


Locality type:Mine
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Big Boulder Mine (Big Boulder Beryl Mine), Crystal Mountain Pegmatite Mining District (Storm Mountain Mining District), Larimer County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:49383
Long-form Identifier:1:3:49383:9
GUID (UUID V4):0
Nearest other occurrences of Muscovite
1.6km (1.0 miles) ⓘMica - Beryl Prospect (MRDS - 10087859), Crystal Mountain Pegmatite Mining District (Storm Mountain Mining District), Larimer County, Colorado, USA
2.0km (1.3 miles) ⓘHumphrey Beryl Prospect, Crystal Mountain Pegmatite Mining District (Storm Mountain Mining District), Larimer County, Colorado, USA
2.6km (1.6 miles) ⓘBeryl No. 5 Prospect, Crystal Mountain Pegmatite Mining District (Storm Mountain Mining District), Larimer County, Colorado, USA
2.6km (1.6 miles) ⓘDouble Opening Prospect, Crystal Mountain Pegmatite Mining District (Storm Mountain Mining District), Larimer County, Colorado, USA
2.8km (1.8 miles) ⓘLodge Pole Mine (Silica Beryl; Thodab No. 1; Claims: Lodge Pole), Crystal Mountain Pegmatite Mining District (Storm Mountain Mining District), Larimer County, Colorado, USA
2.9km (1.8 miles) ⓘCrystal Mountain, Crystal Mountain Pegmatite Mining District (Storm Mountain Mining District), Larimer County, Colorado, USA
3.1km (1.9 miles) ⓘMica - Beryl Prospect, Crystal Mountain Pegmatite Mining District (Storm Mountain Mining District), Larimer County, Colorado, USA
3.4km (2.1 miles) ⓘTantalum Prospect (MRDS - 10087861), Crystal Mountain Pegmatite Mining District (Storm Mountain Mining District), Larimer County, Colorado, USA
4.1km (2.6 miles) ⓘBuckhorn Mica Mine (Claim: Emerald Gem), Crystal Mountain Pegmatite Mining District (Storm Mountain Mining District), Larimer County, Colorado, USA
4.7km (2.9 miles) ⓘLewis Beryl Prospect, Crystal Mountain Pegmatite Mining District (Storm Mountain Mining District), Larimer County, Colorado, USA
References
Rocks & Min.:62:234-235.
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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