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
Excelsior (Relief; Rex Millsite; Winnie; Winnie Millsite; Newport; Constance Millsite; Annex; Pay Rock; Weiss; Apex; War Eagle), Spring Mountain Mining District, Lemhi County, Idaho, USA


Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Excelsior (Relief; Rex Millsite; Winnie; Winnie Millsite; Newport; Constance Millsite; Annex; Pay Rock; Weiss; Apex; War Eagle), Spring Mountain Mining District, Lemhi County, Idaho, USA
Data Identifiers
Mindat Occurrence Record ID:455358
Long-form Identifier:1:3:455358:8
GUID (UUID V4):0
Nearest other occurrences of Calcite
1.8km (1.1 miles) ⓘIron Mask Mine (Valley View), Spring Mountain Mining District, Lemhi County, Idaho, USA
5.6km (3.5 miles) ⓘColorado Group, Spring Mountain Mining District, Lemhi County, Idaho, USA
35.5km (22.1 miles) ⓘWeimer Mine (Towlgreen Group; Paymaster; Valley View), Kaufman, Skull Canyon Mining District, Clark County, Idaho, USA
41.2km (25.6 miles) ⓘIma Mine, Blue Wing Mining District, Lemhi County, Idaho, USA
44.1km (27.4 miles) ⓘDaisy Black Mine, Dome Mining District, Lemhi Range, Butte County, Idaho, USA
46.9km (29.1 miles) ⓘFritz Creek Travertine Mine (Medicine Lodge Canyon), Warm Creek Area, Clark County, Idaho, USA
51.8km (32.2 miles) ⓘMaryland Mine, Junction Mining District (Little Eightmile Mining District), Lemhi County, Idaho, USA
52.9km (32.9 miles) ⓘBuckhorn Mine, Junction Mining District (Little Eightmile Mining District), Lemhi County, Idaho, USA
53.7km (33.3 miles) ⓘElmira Mine, Junction Mining District (Little Eightmile Mining District), Lemhi County, Idaho, USA
60.8km (37.8 miles) ⓘEmpire Copper Mine, Mackay Mining District (Alder Creek Mining District; White Knob Mining District), Custer County, Idaho, USA
References
Ream, Lanny R. (2004) Idaho Minerals (2nd ed.) L. R. Ream Publishing.
 
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