Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Muscovite from
Bald Hornet Prospect, Snoqualmie Mining District, King County, Washington, 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 Bald Hornet Prospect, Snoqualmie Mining District, King County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:995199
Long-form Identifier:1:3:995199:0
GUID (UUID V4):0
Nearest other occurrences of Muscovite
0.2km (0.1 miles) ⓘMount Si Copper Prospect, Snoqualmie Mining District, King County, Washington, USA
8.5km (5.3 miles) ⓘGifford Ridge, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA
13.0km (8.1 miles) ⓘRainy Mine, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA
19.1km (11.8 miles) ⓘNorth Fork Copper Deposit, Buena Vista Mining District, King County, Washington, USA
19.2km (12.0 miles) ⓘPurple Hope No. 4 claim, Purple Hope claims, Green Ridge, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA
19.8km (12.3 miles) ⓘGreen Ridge, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA
21.6km (13.5 miles) ⓘBear Basin Mines, Buena Vista Mining District, King County, Washington, USA
22.9km (14.2 miles) ⓘDurham Clay Deposit, Green River Area, King County, Washington, USA
23.0km (14.3 miles) ⓘCleopatra Mine, Miller River Mining District, King County, Washington, USA
24.1km (14.9 miles) ⓘKanasket Clay Deposit, Green River Area, King County, Washington, USA
References
Rocks and Minerals 66:6, p.469
 
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