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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Copper-bearing Melanterite from
Island Mountain Mine (Dahrman group; Island Mountain Consolidated Mine; Annex; Leach; Merritt Gore; Shotgun), Moose Peak, Island Mountain, Trinity County, California, USA


Locality type:Mine
Classification
Species:Melanterite var: Copper-bearing Melanterite
Formula:(Fe,Cu)SO4 · 7H2O
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Goslarite
Data
Mineral Data:Click here to view Copper-bearing Melanterite data
Locality Data:Click here to view Island Mountain Mine (Dahrman group; Island Mountain Consolidated Mine; Annex; Leach; Merritt Gore; Shotgun), Moose Peak, Island Mountain, Trinity County, California, USA
Data Identifiers
Mindat Occurrence Record ID:686455
Long-form Identifier:1:3:686455:2
GUID (UUID V4):0
References
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 290
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
 
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