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
Sunrise Prospect, North Fork of the Sultan River, Sultan Mining District, Snohomish 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 Sunrise Prospect, North Fork of the Sultan River, Sultan Mining District, Snohomish County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:986983
Long-form Identifier:1:3:986983:7
GUID (UUID V4):0
Nearest other occurrences of Muscovite
13.7km (8.5 miles) ⓘSilver Coin claim, Marten Creek, Silverton Mining District, Snohomish County, Washington, USA
16.7km (10.3 miles) ⓘLockwood Pyrite Prospect, Sultan Mining District, Snohomish County, Washington, USA
20.3km (12.6 miles) ⓘGunn Peak Prospect, Bitter Creek, Index Mining District, Snohomish County, Washington, USA
23.2km (14.4 miles) ⓘBarclay Creek Skarn, Index Mining District, Snohomish County, Washington, USA
25.0km (15.6 miles) ⓘGold Mountain Prospect, Gold Mountain, Darrington Mining District, Snohomish County, Washington, USA
28.2km (17.5 miles) ⓘSultan Canyon, Sultan Mining District, Snohomish County, Washington, USA
35.4km (22.0 miles) ⓘGreat Republic Mine, Miller River Mining District, King County, Washington, USA
38.1km (23.7 miles) ⓘNorth Fork Copper Deposit, Buena Vista Mining District, King County, Washington, USA
40.4km (25.1 miles) ⓘBlack Dike Prospect, Miller River Mining District, King County, Washington, USA
41.1km (25.5 miles) ⓘBear Basin Mines, Buena Vista Mining District, King County, Washington, USA
References
Cannon, Bart (1975) Minerals of Washington. Cordilleran. 184 pp.
Derkey, Robert E., Joseph, Nancy L., Lasmanis, Raymond (1990, November) Metal Mines of Washington - Preliminary Report. Open File Report 90-18. Washington Division of Geology and Earth Resources
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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