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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Kaolinite from
Brokeoff Mountain, Lassen Volcanic National Park, Shasta County, California, USA


Locality type:Mountain
Classification
Species:Kaolinite
Formula:Al2(Si2O5)(OH)4
Comments:Occurs in thick, incoherent deposits with alunite and opal.
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Alunite
Opal
Data
Mineral Data:Click here to view Kaolinite data
Locality Data:Click here to view Brokeoff Mountain, Lassen Volcanic National Park, Shasta County, California, USA
Data Identifiers
Mindat Occurrence Record ID:650667
Long-form Identifier:1:3:650667:4
GUID (UUID V4):0
Nearest other occurrences of Kaolinite
6.6km (4.1 miles) ⓘLassen Peak, Lassen Volcanic National Park, Shasta County, California, USA
68.1km (42.3 miles) ⓘPit River Consolidated Mines (Pit River Mine), Heroult, East Shasta Copper - Zinc Mining District, Klamath Mountains, Shasta County, California, USA
References
Williams, Howel (1932), Geology of the Lassen Volcanic National Park, California: University of California Department of Geological Sciences Bulletin: 21: 249
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 235.
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
 
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