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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Smithsonite from
Black Iron Mine (Eagle No. 2 Mine; Iron Mask), Gilman, Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle County, Colorado, USA


Locality type:Mine
Classification
Species:Smithsonite
Formula:ZnCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Smithsonite data
Locality Data:Click here to view Black Iron Mine (Eagle No. 2 Mine; Iron Mask), Gilman, Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:355182
Long-form Identifier:1:3:355182:0
GUID (UUID V4):0
Nearest other occurrences of Smithsonite
1.6km (1.0 miles) ⓘEagle Mine, Gilman, Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle County, Colorado, USA
18.8km (11.7 miles) ⓘColonel Sellers Mine, Breene Mine (Aftermath; Whitequail; Badger; Milo; Delphose; Colonal Sellers; Wilfley-Kimberly), Kokomo-Tenmile area, Summit County, Colorado, USA
19.5km (12.1 miles) ⓘQueen of the West Occurrence, Kokomo-Tenmile area, Summit County, Colorado, USA
19.9km (12.4 miles) ⓘNettie B, Kokomo-Tenmile area, Summit County, Colorado, USA
20.2km (12.6 miles) ⓘRobinson Mine (Robinson No. 2), Kokomo-Tenmile area, Summit County, Colorado, USA
21.0km (13.1 miles) ⓘIron Mask Mine, Kokomo-Tenmile area, Summit County, Colorado, USA
31.2km (19.4 miles) ⓘRobert E. Lee Mine, Fryer Hill, Leadville, Lake County, Colorado, USA
31.4km (19.5 miles) ⓘMay Queen Mine, Fryer Hill, Leadville, Lake County, Colorado, USA
31.7km (19.7 miles) ⓘMaid Of Erin Mine, Carbonate Hill, Leadville, Lake County, Colorado, USA
31.9km (19.8 miles) ⓘWolftone Mine, Carbonate Hill, Leadville, Lake County, Colorado, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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