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


Locality type:Mine
Classification
Species:Rhodochrosite
Formula:MnCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Rhodochrosite 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:258253
Long-form Identifier:1:3:258253:5
GUID (UUID V4):0
Nearest other occurrences of Rhodochrosite
27.6km (17.2 miles) ⓘGlove Mine (Sunrise Mine), Glove Mine group (Zombie & Zeco claims; Festiago-Franklin; Blacksmith adit), Cottonwood Canyon, Tyndall Mining District, Santa Cruz County, Arizona, USA
34.3km (21.3 miles) ⓘJersey Girl Mine (Jersey Girl prospect), Toluachi group of claims (Toluachi group; Bonanza tunnel; Tennantite claim), Salero area, Tyndall Mining District, Santa Cruz County, Arizona, USA
55.6km (34.5 miles) ⓘHumboldt Mine, Alum Gulch, Harshaw Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USA
56.4km (35.0 miles) ⓘTrench Mine, Trench and Josephine Mine group (Josephine Mines; Trench group of claims; Lunch Cans prospect), Alum Gulch, Harshaw Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USA
57.1km (35.5 miles) ⓘAlta Mine, Hardshell Gulch, Harshaw, Harshaw Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USA
57.6km (35.8 miles) ⓘBlue Nose Mine (Abe Lincoln Mine; War Horse Mine; Big Chief Mine; Big Jim Mine; Blue Nose Extension Mine; Home Again Virginia Hay claims), Harshaw, Harshaw Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USA
62.3km (38.7 miles) ⓘFour Metals Mine, Red Hill, Providencia Canyon, Patagonia Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USA
94.1km (58.5 miles) ⓘLucky Cuss Mine, Tombstone Mining District, Cochise 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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