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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Marcasite from
Minnie Mine, Methow Mining District, Okanogan County, Washington, USA


Locality type:Mine
Classification
Species:Marcasite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Marcasite data
Locality Data:Click here to view Minnie Mine, Methow Mining District, Okanogan County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:126351
Long-form Identifier:1:3:126351:0
GUID (UUID V4):0
Nearest other occurrences of Marcasite
58.9km (36.6 miles) ⓘEldorado, Railroad Creek Mining District, Chelan County, Washington, USA
68.7km (42.7 miles) ⓘGlacier Peak Mine, Glacier Peak Mining District, Snohomish County, Washington, USA
71.7km (44.6 miles) ⓘIllinois Mine, Slate Creek Mining District, Whatcom County, Washington, USA
72.5km (45.1 miles) ⓘChancellor Group, Hidden Lakes Mining District, Whatcom County, Washington, USA
74.2km (46.1 miles) ⓘCopper World Extension Mine, Palmer Mountain Mining District, Okanogan County, Washington, USA
76.4km (47.5 miles) ⓘTip Top Prospect, Nespelem Mining District, Okanogan County, Washington, USA
76.5km (47.5 miles) ⓘAndy O'Neil Mine, Nespelem Mining District, Okanogan County, Washington, USA
82.3km (51.1 miles) ⓘKaaba Mine, Nighthawk Mining District, Okanogan County, Washington, USA
88.6km (55.1 miles) ⓘMountain Boy Mine, Park City Mining District, Okanogan County, Washington, USA
89.6km (55.7 miles) ⓘCastle Creek, Park City Mining District, Okanogan County, Washington, USA
References
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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