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
Blevins Occurrence, Howard Mining District (Ochoco Mining District; Bolivar Mining District), Crook County, Oregon, USA


Locality type:Occurrence
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Blevins Occurrence, Howard Mining District (Ochoco Mining District; Bolivar Mining District), Crook County, Oregon, USA
Data Identifiers
Mindat Occurrence Record ID:470668
Long-form Identifier:1:3:470668:7
GUID (UUID V4):0
Nearest other occurrences of Calcite
2.4km (1.5 miles) ⓘJimmy Ann (Beardssmore; Stanley & Culbertson; Staley; Ochoco Mines Corp.; Ochoco Quicksilver Champion; Barney and Staley), Howard Mining District (Ochoco Mining District; Bolivar Mining District), Crook County, Oregon, USA
6.7km (4.2 miles) ⓘChampion Mine, Howard Mining District (Ochoco Mining District; Bolivar Mining District), Crook County, Oregon, USA
9.0km (5.6 miles) ⓘLittle Hay Creek Occurrence (Miller Flat; Flag Creek), Howard Mining District (Ochoco Mining District; Bolivar Mining District), Crook County, Oregon, USA
12.9km (8.0 miles) ⓘIndependent Occurrence, Howard Mining District (Ochoco Mining District; Bolivar Mining District), Crook County, Oregon, USA
13.1km (8.1 miles) ⓘOchoco Mine (Ophir-Mayflower), Howard Mining District (Ochoco Mining District; Bolivar Mining District), Crook County, Oregon, USA
14.7km (9.2 miles) ⓘDevil's Food Occurrence (Ridge Claim; Westbrook; Endicott), Howard Mining District (Ochoco Mining District; Bolivar Mining District), Crook County, Oregon, USA
15.4km (9.5 miles) ⓘRound Mountain, Howard Mining District (Ochoco Mining District; Bolivar Mining District), Crook County, Oregon, USA
15.4km (9.6 miles) ⓘAmity Mine (International Mercury; Homestake Mercury; Johnson Creek; New Amity; Paulsen and Saylor), Howard Mining District (Ochoco Mining District; Bolivar Mining District), Crook County, Oregon, USA
18.2km (11.3 miles) ⓘBear Claims (Mercury Queen), Marks Creek area, Wheeler County, Oregon, USA
20.2km (12.6 miles) ⓘMoore Occurrence, Maury Mountain Mining District, Maury Mountains, Crook County, Oregon, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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