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Muscovite from
Cressmans Gulch Mine (Cressmans Gulch pegmatite), Clear Creek pegmatite Province, Jefferson 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 Cressmans Gulch Mine (Cressmans Gulch pegmatite), Clear Creek pegmatite Province, Jefferson County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:355429
Long-form Identifier:1:3:355429:6
GUID (UUID V4):0
Nearest other occurrences of Muscovite
2.3km (1.4 miles) ⓘLadwig Group (Ladwig No. 2; Ladwig No. 3; Claims: Ladwig No. 1), Ralston Buttes Mining District, Jefferson County, Colorado, USA
3.5km (2.2 miles) ⓘG. H. Buckman Ranch, Front Range, Jefferson County, Colorado, USA
4.9km (3.0 miles) ⓘGuy Hill pegmatite area, Jefferson County, Colorado, USA
5.6km (3.5 miles) ⓘLaramie Formation, Golden, Golden Mining District, Jefferson County, Colorado, USA
5.8km (3.6 miles) ⓘDrew Hill Prospect (Drew Hill Pegmatites Nos. 1 and 2), Clear Creek pegmatite Province, Jefferson County, Colorado, USA
6.2km (3.8 miles) ⓘSchwartzwalder Mine (Ralston Creek Mine), Ralston Buttes Mining District, Jefferson County, Colorado, USA
6.9km (4.3 miles) ⓘRobinson Gulch pegmatite, Clear Creek pegmatite Province, Jefferson County, Colorado, USA
8.7km (5.4 miles) ⓘCentennial Cone pegmatite (K. L. Green Ranch), Centennial Cone, Clear Creek pegmatite Province, Jefferson County, Colorado, USA
9.7km (6.0 miles) ⓘRoscoe Beryl Mine (Roscoe pegmatite), Clear Creek pegmatite Province, Jefferson County, Colorado, USA
10.7km (6.7 miles) ⓘStrang pegmatite occurrence (S. B. Strang Ralston Creek pegmatite), Clear Creek Pegmatite Province, Jefferson County, Colorado, USA
References
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
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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