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


Locality type:Mine
Classification
Species:Sphalerite
Formula:ZnS
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Sphalerite data
Locality Data:Click here to view Bleak House Mine, Gilman, Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:993465
Long-form Identifier:1:3:993465:8
GUID (UUID V4):0
Nearest other occurrences of Sphalerite
0.4km (0.2 miles) ⓘEagle Mine, Gilman, Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle County, Colorado, USA
1.0km (0.6 miles) ⓘPercy Chester Mine, Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle County, Colorado, USA
2.0km (1.2 miles) ⓘChampion Mine, Gilman, Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle County, Colorado, USA
2.8km (1.8 miles) ⓘBody Mine, Gilman, Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle County, Colorado, USA
3.7km (2.3 miles) ⓘWyoming Mine, Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle County, Colorado, USA
7.2km (4.5 miles) ⓘGround Hog Mine, Battle Mountain, Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle County, Colorado, USA
20.2km (12.6 miles) ⓘRaven and Eagle Mine (Quail Group), Kokomo-Tenmile area, Summit County, Colorado, USA
20.3km (12.6 miles) ⓘColonel Sellers Mine, Breene Mine (Aftermath; Whitequail; Badger; Milo; Delphose; Colonal Sellers; Wilfley-Kimberly), Kokomo-Tenmile area, Summit County, Colorado, USA
20.4km (12.7 miles) ⓘWifley, Kokomo-Tenmile area, Summit County, Colorado, USA
20.7km (12.9 miles) ⓘEnterprise Shaft, Queen of the West Occurrence, Kokomo-Tenmile area, Summit County, Colorado, USA
References
Rocks & Min. 78:5:298-323
 
and/or  
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