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Muscovite from
Knob Hill prospect (Knob Hill pegmatite), Howard, Cotopaxi Mining District, Fremont County, Colorado, USA


Locality type:Prospect
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 Knob Hill prospect (Knob Hill pegmatite), Howard, Cotopaxi Mining District, Fremont County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:374644
Long-form Identifier:1:3:374644:8
GUID (UUID V4):0
Nearest other occurrences of Muscovite
0.3km (0.2 miles) ⓘOgden prospect, Cotopaxi Pegmatite area, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA
3.0km (1.9 miles) ⓘSchaaf prospect, Cotopaxi Pegmatite area, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA
4.1km (2.6 miles) ⓘHoward prospects, Howard, Cotopaxi Mining District, Fremont County, Colorado, USA
9.6km (5.9 miles) ⓘCotopaxi Feldspar Mine (Cotopaxi Feldspar prospect; Henry pegmatite), Cotopaxi Pegmatite area, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA
10.0km (6.2 miles) ⓘMcCoy prospects, Cotopaxi Pegmatite area, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA
10.1km (6.3 miles) ⓘPine Ridge pegmatite, Cotopaxi Pegmatite area, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA
10.1km (6.3 miles) ⓘColorado Feldspar Pegmatite, Cotopaxi Mining District, Fremont County, Colorado, USA
10.4km (6.4 miles) ⓘCotopaxi Mine (Cotopaxi lode; Gumaer Mine; Fannie lode; Fannie Mill), Mine Gulch, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA
14.0km (8.7 miles) ⓘBull Ridge Mine, Texas Creek Area, Fremont County, Colorado, USA
16.8km (10.4 miles) ⓘDevil's Hole Mine, Fremont 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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