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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Willemite from
Green Lead Mine (Greenlead Mine), Fawnskin (Grout), Bear Valley District, San Bernardino County, California, USA


Locality type:Mine
Classification
Species:Willemite
Formula:Zn2SiO4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Willemite data
Locality Data:Click here to view Green Lead Mine (Greenlead Mine), Fawnskin (Grout), Bear Valley District, San Bernardino County, California, USA
Data Identifiers
Mindat Occurrence Record ID:66950
Long-form Identifier:1:3:66950:2
GUID (UUID V4):0
Nearest other occurrences of Willemite
1.0km (0.6 miles) ⓘDesert View Mine, Fawnskin (Grout), Bear Valley District, San Bernardino County, California, USA
67.1km (41.7 miles) ⓘLead Mountain Mine (Main Barite Mine), Lead Mountain [2], Barstow, Barstow Mining District, San Bernardino County, California, USA
71.2km (44.3 miles) ⓘJust Tungsten Quarries Mine (Shadow Mts Tungsten-North Field; Shadow Mtn. Mines; Just Associates Mine; Princess Pat Mine; Shadow Mountains Mines; Shadow Mountain Mine), Silver Peak [2], Shadow Mountains Tungsten-North Field, Shadow Mts [2], San Bernardino County, California, USA
85.6km (53.2 miles) ⓘOld Pete Mine (Yim-Wheelock Mine), Ragtown, Stedman District (Ludlow; Rochester; Buckeye), Bullion Mts (Bullion Range), San Bernardino County, California, USA
References
Rocks & Min.:61:33-34.
 
and/or  
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