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
Radon Mine, Lisbon Valley Mining District, San Juan County, Utah, 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 Radon Mine, Lisbon Valley Mining District, San Juan County, Utah, USA
Data Identifiers
Mindat Occurrence Record ID:190657
Long-form Identifier:1:3:190657:8
GUID (UUID V4):0
Nearest other occurrences of Calcite
2.0km (1.2 miles) ⓘLisbon Mine & Mill (Lisbon; Lisbon Mine-Rio Algom), Lisbon Valley Mining District, San Juan County, Utah, USA
2.2km (1.4 miles) ⓘBlue Crystal Mine, Lisbon Valley Mining District, San Juan County, Utah, USA
6.9km (4.3 miles) ⓘMi Vida Mine, Lisbon Valley Mining District, San Juan County, Utah, USA
17.3km (10.7 miles) ⓘLisbon Valley Copper Mine, Lisbon Valley Mining District, San Juan County, Utah, USA
17.6km (11.0 miles) ⓘBlackbird Mine, Lisbon Valley Mining District, San Juan County, Utah, USA
18.9km (11.8 miles) ⓘFirefly–Pigmay Mine, La Sal Creek Mining District, San Juan County, Utah, USA
19.1km (11.9 miles) ⓘWood Mine, San Juan County, Utah, USA
19.5km (12.1 miles) ⓘLittle Don Mine, La Sal Creek Mining District, San Juan County, Utah, USA
20.4km (12.7 miles) ⓘVanadium Queen Mine, La Sal Creek Mining District, San Juan County, Utah, USA
22.1km (13.7 miles) ⓘBlue Cap Mine, La Sal Creek Mining District, San Juan County, Utah, USA
References
Roberts, Willard L., Campbell, Thomas J. (1986) Whewellite from South Dakota and a Review of Other North American Localities. The Mineralogical Record, 17 (2) 131-133
 
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