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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Epidote from
Adventure mine, Greenland, Greenland Township, Ontonagon County, Michigan, USA


Locality type:Mine
Classification
Species:Epidote
Formula:(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Native Copper21
Quartz10
K Feldspar8
- var Adularia8
Prehnite6
Native Silver6
Tenorite4
Calcite3
Datolite3
Pumpellyite-(Mg)3
Chlorite Group2
Data
Mineral Data:Click here to view Epidote data
Locality Data:Click here to view Adventure mine, Greenland, Greenland Township, Ontonagon County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:48433
Long-form Identifier:1:3:48433:6
GUID (UUID V4):0
Nearest other occurrences of Epidote
1.4km (0.9 miles) ⓘRidge Mine, Mass Consolidated Mine, Mass City, Ontonagon County, Michigan, USA
1.6km (1.0 miles) ⓘMass Consolidated Mine, Mass City, Ontonagon County, Michigan, USA
1.6km (1.0 miles) ⓘMass Mine, Mass Consolidated Mine, Mass City, Ontonagon County, Michigan, USA
1.6km (1.0 miles) ⓘToltec Mine, Mass City, Ontonagon County, Michigan, USA
1.9km (1.2 miles) ⓘEvergreen Series (Evergreen Lodes), Ontonagon County, Michigan, USA
1.9km (1.2 miles) ⓘEvergreen Bluff Mine, Mass City, Ontonagon County, Michigan, USA
2.2km (1.3 miles) ⓘSouth Lake Mine (Aztec Mine), Mass City, Ontonagon County, Michigan, USA
2.5km (1.5 miles) ⓘOld Algomah Mine, Mass City, Ontonagon County, Michigan, USA
2.9km (1.8 miles) ⓘBelt Mine (Piscatauqua), Mass City, Ontonagon County, Michigan, USA
3.0km (1.9 miles) ⓘOld Mass Mine, Mass City, Ontonagon County, Michigan, USA
References
Rosemeyer, T. (1990) Through the Scope: Microminerals of the Caledonia Mine Ontonagon County, Michigan. Rocks & Minerals: 65(3): 240.
Henwood, William Jory (1871) On the Native Copper of Lake Superior, in Observations of Metalliferous Deposits, and on Subterranean Temperature - Part the First. Transactions of the Royal Geological Society of Cornwall, 8 (1). 385-489
Morris, Tom (1983) Michigan Mineralogy. A locality Index. Rocks & Minerals, 58 (3). 107-113 doi:10.1080/00357529.1983.11767128p.112
 
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