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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Manganese-bearing Calcite from
Silver Glance Mine, Silver Mining District, La Paz County, Arizona, USA


Locality type:Mine
Classification
Species:Calcite var: Manganese-bearing Calcite
Formula:(Ca,Mn)CO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Manganese-bearing Calcite data
Locality Data:Click here to view Silver Glance Mine, Silver Mining District, La Paz County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:44012
Long-form Identifier:1:3:44012:9
GUID (UUID V4):0
Nearest other occurrences of Manganese-bearing Calcite
2.8km (1.7 miles) ⓘDives Mine, Silver Mining District, La Paz County, Arizona, USA
3.4km (2.1 miles) ⓘSouth Geronimo Mine, Silver Mining District, La Paz County, Arizona, USA
3.4km (2.1 miles) ⓘMendevil Mine, Silver Mining District, La Paz County, Arizona, USA
3.7km (2.3 miles) ⓘNorth Geronimo Mine, Silver Mining District, La Paz County, Arizona, USA
4.2km (2.6 miles) ⓘAmelia Mine, Silver Mining District, La Paz County, Arizona, USA
4.5km (2.8 miles) ⓘRevelation Mine, Clip, Hidden Valley, Silver Mining District, La Paz County, Arizona, USA
5.1km (3.2 miles) ⓘClip Mine, Clip, Hidden Valley, Silver Mining District, La Paz County, Arizona, USA
5.6km (3.5 miles) ⓘCash Entry Mine, Chloride-Mandarin-Cash Entry prospects, U.S. Army Yuma Proving Grounds, Silver Mining District, La Paz County, Arizona, USA
6.5km (4.0 miles) ⓘRiverview Mine, Imperial National Wildlife Refuge, Silver Mining District, La Paz County, Arizona, USA
46.3km (28.7 miles) ⓘBig Eye Mine, Big Eye Mine group, Slumgullion Pass, Castle Dome Mining District, Castle Dome Mountains, Yuma County, Arizona, USA
References
Wilson, E.D. (1933), AZ Bur. Mines Bull. 134: 68-70
Bancroft, Peter; Bricker, Garth (1990) Arizona's Silver Mining District. The Mineralogical Record, 21 (2). p.151-168.
 
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