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
Ruby Mine, Nighthawk Mining District, Okanogan County, Washington, USA


Locality type:Mine
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Ruby Mine, Nighthawk Mining District, Okanogan County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:420550
Long-form Identifier:1:3:420550:0
GUID (UUID V4):0
Nearest other occurrences of Calcite
3.8km (2.3 miles) ⓘKaaba Mine, Nighthawk Mining District, Okanogan County, Washington, USA
4.2km (2.6 miles) ⓘLittle Chopaka Mountain, Nighthawk Mining District, Okanogan County, Washington, USA
9.8km (6.1 miles) ⓘPinnacle Mine, Palmer Mountain Mining District, Okanogan County, Washington, USA
11.5km (7.1 miles) ⓘCopper World Extension Mine, Palmer Mountain Mining District, Okanogan County, Washington, USA
15.8km (9.8 miles) ⓘBuckeye Claim, Wannacut Lake Mining District, Okanogan County, Washington, USA
16.5km (10.2 miles) ⓘDividend-Lakeview Mine, Osoyoos, Osoyoos Mining Division, British Columbia, Canada
17.1km (10.6 miles) ⓘKelsey Prospect, Oroville Mining District, Okanogan County, Washington, USA
17.9km (11.1 miles) ⓘMoncosilgo Prospect, Oroville Mining District, Okanogan County, Washington, USA
18.4km (11.4 miles) ⓘLake Khiluk (Spotted Lake), Osoyoos, Osoyoos Mining Division, British Columbia, Canada
18.8km (11.7 miles) ⓘMak Siccar Mine, Keremeos, Osoyoos Mining Division, British Columbia, Canada
References
Valentine, Grant M., Huntting, Marshall T. (1960) Part II - Metallic Minerals, in Inventory of Washington Minerals. Vol II. Bulletin 37, Washington Geological Survey.p.309
 
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