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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Chalcocite from
Eagle Mine, Gilman, Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle County, Colorado, USA


Locality type:Mine
Classification
Species:Chalcocite
Formula:Cu2S
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcocite data
Locality Data:Click here to view Eagle Mine, Gilman, Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:355180
Long-form Identifier:1:3:355180:6
GUID (UUID V4):0
Nearest other occurrences of Chalcocite
1.9km (1.2 miles) ⓘChampion Mine, Gilman, Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle County, Colorado, USA
25.8km (16.0 miles) ⓘClimax Mine, Climax, Climax Mining District, Lake County, Colorado, USA
31.7km (19.7 miles) ⓘHorse Mountain Uranium Mines, Brush Creek Mining District, Eagle County, Colorado, USA
31.9km (19.8 miles) ⓘRussia Mine, Mount Lincoln, Alma Mining District, Park County, Colorado, USA
33.0km (20.5 miles) ⓘMoose Mine, Mount Bross, Alma Mining District, Park County, Colorado, USA
34.0km (21.1 miles) ⓘDolly Varden Mine (Varden Mine), Mount Bross, Alma Mining District, Park County, Colorado, USA
34.2km (21.3 miles) ⓘPenn No. 3 Mine, Lake County, Colorado, USA
34.4km (21.4 miles) ⓘTucson Mine, Iron Hill, Lake County, Colorado, USA
34.9km (21.7 miles) ⓘIbex Mine, Breece Hill, Leadville, Lake County, Colorado, USA
35.1km (21.8 miles) ⓘBreece Hill, Leadville, Lake County, Colorado, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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