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
Chaney Winship-Doak Mine (Winship-Donovan Mine; Chaney deposit; Chaney lease), Tesla, Livermore Mining District (Tesla District), Alameda County, California, 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 Chaney Winship-Doak Mine (Winship-Donovan Mine; Chaney deposit; Chaney lease), Tesla, Livermore Mining District (Tesla District), Alameda County, California, USA
Data Identifiers
Mindat Occurrence Record ID:322222
Long-form Identifier:1:3:322222:5
GUID (UUID V4):0
Nearest other occurrences of Rhodochrosite
4.1km (2.6 miles) ⓘNelson Bailey Mine (Nelson lease; Bailey Mine; Newhall Mine), Mendenhall Springs, Livermore Mining District (Tesla District), Alameda County, California, USA
5.2km (3.2 miles) ⓘArroyo Mocho Road occurrence (Mines Road ?), Mendenhall Springs, Livermore Mining District (Tesla District), Alameda County, California, USA
5.2km (3.3 miles) ⓘCamp 9 deposit (Camp 9 Merchant; Cummings), Mendenhall Springs, Livermore Mining District (Tesla District), Alameda County, California, USA
8.0km (5.0 miles) ⓘFabian Mine, Castle Rock, Ladd-Buckeye Mining District, San Joaquin County, California, USA
8.4km (5.2 miles) ⓘLadd Mine (Old Ladd Mine; Corral Hollow Mine; Carral Hollow Mine), Castle Rock, Ladd-Buckeye Mining District, San Joaquin County, California, USA
9.0km (5.6 miles) ⓘScott prospect, Eagle Mountain, Ladd-Buckeye Mining District, San Joaquin County, California, USA
9.7km (6.0 miles) ⓘCummings Mine (Cummings lease; Section 13; Lone Tree; Winship property), Eagle Mountain, Ladd-Buckeye Mining District, San Joaquin County, California, USA
11.7km (7.2 miles) ⓘSection 14 Mine (Section 14 deposit), Sugarloaf Butte, Cedar Mountain Mining District, Alameda County, California, USA
19.3km (12.0 miles) ⓘBuckeye Mine (Buckeye Mines; Wright Mine), Mount Oso, Ladd-Buckeye Mining District, Stanislaus County, California, USA
20.8km (12.9 miles) ⓘMoran Brothers Mine (Moy Mine; Stanislaus County occurrence), Mount Oso, Ladd-Buckeye Mining District, Stanislaus County, California, USA
References
Trask, Parker Davies (1950) Geologic description of the manganese deposits of California. California Division of Mines Bulletin 152, 378 pp.: 15-27
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
 
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