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
Twin Buttes Mine, Twin Buttes, Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA


Locality type:Mine
Classification
Species:Epidote
Formula:(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Comments:Occurs in tactites and skarns and with laumontite in calcite veinlets.
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Calcite
Laumontite
Associated Minerals Based on Photo Data:
Nontronite2
Actinolite2
Manganese Oxides2
Data
Mineral Data:Click here to view Epidote data
Locality Data:Click here to view Twin Buttes Mine, Twin Buttes, Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:258231
Long-form Identifier:1:3:258231:3
GUID (UUID V4):0
Nearest other occurrences of Epidote
3.2km (2.0 miles) ⓘSenator Morgan Mine group, Twin Buttes, Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA
7.9km (4.9 miles) ⓘSierrita Mine, Batamote Hills, Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA
8.5km (5.3 miles) ⓘEsperanza Mine [new], Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA
8.9km (5.6 miles) ⓘProsperity Mine group (Helmet Peak group; Helmet Peak Mine; Prosperity claims), Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA
9.7km (6.0 miles) ⓘSan Xavier Mine (San Xavier Mine shaft), Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA
11.2km (6.9 miles) ⓘMineral Hill Mines (Azurite group; Old Azurite Mine; Copper Glance Mine), Mineral Hill, Mission complex, San Xavier, Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA
23.0km (14.3 miles) ⓘBlack Dike Mine (Black Dike group; Black Dike claim; Black Dike deposit; Black Dyke Mine; Big Dike; Bobson group; Big Dike Apex & Ajax), Papago Mining District (Sierrita Mining District), Sierrita Mountains, Pima County, Arizona, USA
23.0km (14.3 miles) ⓘUnnamed Mn prospect, Papago Mining District (Sierrita Mining District), Sierrita Mountains, Pima County, Arizona, USA
23.3km (14.5 miles) ⓘBulldozer Mine, Bulldozer Hill, Tiptop Mine group (Tiptop Camp prospects/mines), Tiptop Mountain, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
24.7km (15.4 miles) ⓘHelvetia-Rosemont Mining District, Pima County, Arizona, USA
References
Galbraith, F. W. (1947) Minerals of Arizona (Second Edition, Revised). University of Arizona Bulletin 153. Arizona Bureau of Mines
 
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