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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Calcite from
Old Baldy prospects, Littleshot Camp, Madera Canyon, Old Baldy Mining District, Santa Cruz County, Arizona, USA


Locality type:Prospect
Classification
Species:Calcite
Formula:CaCO3
Comments:Coarsely crystalline, variously colored bodies in altered schist.
Colour:White to black
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Old Baldy prospects, Littleshot Camp, Madera Canyon, Old Baldy Mining District, Santa Cruz County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:268552
Long-form Identifier:1:3:268552:6
GUID (UUID V4):0
Nearest other occurrences of Calcite
0.9km (0.6 miles) ⓘOnyx Cave, Greaterville Mining District, Santa Cruz County, Arizona, USA
1.7km (1.0 miles) ⓘConglomerate Mine (Anderson Mine; Snyder Mine; Silver Moon; Sonoita; Reese; Colossa; Aurum; A.W.A.; Anderson prospect), Fish Canyon, Greaterville, Greaterville Mining District, Pima County, Arizona, USA
4.8km (3.0 miles) ⓘSt. Louis Mine (Morning Star Mine; Isabel), St. Louis Gulch, Hughes Gulch, Greaterville placer deposits, Greaterville, Greaterville Mining District, Pima County, Arizona, USA
4.9km (3.1 miles) ⓘSanta Rita group (Hammer Head group), Greaterville Mining District, Pima County, Arizona, USA
5.1km (3.1 miles) ⓘQuebec Mine, N Gulch, Greaterville placer deposits, Greaterville, Greaterville Mining District, Pima County, Arizona, USA
5.4km (3.4 miles) ⓘGreaterville, Greaterville Mining District, Pima County, Arizona, USA
5.6km (3.5 miles) ⓘYuba Mine (Inghram Mine), Hughes Gulch, Greaterville placer deposits, Greaterville, Greaterville Mining District, Pima County, Arizona, USA
7.4km (4.6 miles) ⓘFlorida Mine, Robinson property (Robinson group), Stone Cabin Canyon, Old Baldy Mining District, Pima County, Arizona, USA
9.5km (5.9 miles) ⓘGolden Gate Mine group, Rosemont (Rosemont Camp), Helvetia-Rosemont Mining District, Pima County, Arizona, USA
11.7km (7.2 miles) ⓘMansfield Mine group (Mansfield No. 1 and 2), Mansfield Gulch (Mansfield Canyon), Temporal Gulch, Wrightson Mining District, Santa Cruz County, Arizona, USA
References
Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 176.
 
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