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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Native Copper from
Esperanza Mine [new], Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA


Locality type:Mine
Classification
Species:Native Copper
Formula:Cu
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Native Copper data
Locality Data:Click here to view Esperanza Mine [new], Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:537291
Long-form Identifier:1:3:537291:1
GUID (UUID V4):0
Nearest other occurrences of Native Copper
7.8km (4.8 miles) ⓘCopper Glance Mine (Glance Mine), Stevens Mountain, Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA
8.5km (5.3 miles) ⓘTwin Buttes Mine, Twin Buttes, Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA
14.2km (8.8 miles) ⓘPima Mine, Mission complex, San Xavier, Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA
15.1km (9.4 miles) ⓘMission pit, Mission complex, San Xavier, Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA
15.1km (9.4 miles) ⓘMission Mine (Mission underground mine), Mission complex, San Xavier, Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA
16.1km (10.0 miles) ⓘMission complex, San Xavier, Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA
30.1km (18.7 miles) ⓘUpper and Great Western groups, Jackson Canyon, Old Baldy Mining District, Pima County, Arizona, USA
31.2km (19.4 miles) ⓘBulldozer Mine, Bulldozer Hill, Tiptop Mine group (Tiptop Camp prospects/mines), Tiptop Mountain, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
32.2km (20.0 miles) ⓘHelvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
32.6km (20.2 miles) ⓘHelvetia-Rosemont Mining District, Pima County, Arizona, USA
References
MRDS database Dep. ID file #10039594, MRDS ID #M050391.
 
and/or  
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