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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Epsomite from
Mendota Mine, Illinois Mine, Georgetown District, Clear Creek County, Colorado, USA


Locality type:Mine
Classification
Species:Epsomite
Formula:MgSO4 · 7H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Epsomite data
Locality Data:Click here to view Mendota Mine, Illinois Mine, Georgetown District, Clear Creek County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:438477
Long-form Identifier:1:3:438477:9
GUID (UUID V4):0
Nearest other occurrences of Epsomite
0.1km (0.0 miles) ⓘMendota Mine - Victoria Tunnel & Shaft, Georgetown District, Clear Creek County, Colorado, USA
0.1km (0.1 miles) ⓘBurleigh Mine, Illinois Mine, Georgetown District, Clear Creek County, Colorado, USA
0.8km (0.5 miles) ⓘDiamond Mine (Diamond Tunnel), Illinois Mine, Georgetown District, Clear Creek County, Colorado, USA
19.6km (12.2 miles) ⓘTopeka Mine, Central City Mining District (Central Mining District), Gilpin County, Colorado, USA
19.9km (12.4 miles) ⓘTigris, Lawson Mining District, Clear Creek County, Colorado, USA
21.1km (13.1 miles) ⓘDruid Mine (Drvid Mine), Central City Mining District (Central Mining District), Gilpin County, Colorado, USA
42.3km (26.3 miles) ⓘSchwartzwalder Mine (Ralston Creek Mine), Ralston Buttes Mining District, Jefferson County, Colorado, USA
59.1km (36.7 miles) ⓘEagle Mine, Gilman, Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle County, Colorado, USA
67.9km (42.2 miles) ⓘTucson Mine, Iron Hill, Lake County, Colorado, USA
79.3km (49.2 miles) ⓘUnnamed coal mine, Weld 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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