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


Locality type:Mine
Classification
Species:Coquimbite
Formula:AlFe3(SO4)6(H2O)12 · 6H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Coquimbite 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:438484
Long-form Identifier:1:3:438484:7
GUID (UUID V4):0
Nearest other occurrences of Coquimbite
0.0km (0.0 miles) ⓘGilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle County, Colorado, USA
1.6km (1.0 miles) ⓘ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
6.8km (4.2 miles) ⓘGround Hog Mine, Battle Mountain, Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle County, Colorado, USA
78.4km (48.7 miles) ⓘTopeka Mine, Central City Mining District (Central Mining District), Gilpin County, Colorado, USA
References
Eckel, Edwin Butt; Cobban, Robert R.; Mosburg, Shirley K.; Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
 
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