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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Calcite from
Moncosilgo Prospect, Oroville Mining District, Okanogan County, Washington, USA


Locality type:Prospect
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Moncosilgo Prospect, Oroville Mining District, Okanogan County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:310432
Long-form Identifier:1:3:310432:3
GUID (UUID V4):0
Nearest other occurrences of Calcite
5.2km (3.2 miles) ⓘKelsey Prospect, Oroville Mining District, Okanogan County, Washington, USA
7.6km (4.7 miles) ⓘDividend-Lakeview Mine, Osoyoos, Osoyoos Mining Division, British Columbia, Canada
12.7km (7.9 miles) ⓘBuckeye Claim, Wannacut Lake Mining District, Okanogan County, Washington, USA
14.7km (9.1 miles) ⓘKaaba Mine, Nighthawk Mining District, Okanogan County, Washington, USA
14.9km (9.2 miles) ⓘCopper World Extension Mine, Palmer Mountain Mining District, Okanogan County, Washington, USA
16.5km (10.2 miles) ⓘLake Khiluk (Spotted Lake), Osoyoos, Osoyoos Mining Division, British Columbia, Canada
16.8km (10.4 miles) ⓘPinnacle Mine, Palmer Mountain Mining District, Okanogan County, Washington, USA
17.9km (11.1 miles) ⓘRuby Mine, Nighthawk Mining District, Okanogan County, Washington, USA
18.0km (11.2 miles) ⓘLittle Chopaka Mountain, Nighthawk Mining District, Okanogan County, Washington, USA
20.4km (12.7 miles) ⓘLucky Knock Mine, Okanogan County, Washington, USA
References
Valentine, Grant M., Huntting, Marshall T. (1960) Part II - Metallic Minerals, in Inventory of Washington Minerals. Vol II. Bulletin 37, Washington Geological Survey.
 
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