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Tourmaline from
Unnamed Tourmaline occurrence [1], Colfax, Colfax Mining District (Illinois Mining District), Placer County, California, USA


Locality type:Occurrence
Classification
Species:'Tourmaline' (not an IMA approved species)
Formula:AD3G6(T6O18)(BO3)3X3Z
Colour:Dark Brown
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tourmaline data
Locality Data:Click here to view Unnamed Tourmaline occurrence [1], Colfax, Colfax Mining District (Illinois Mining District), Placer County, California, USA
Data Identifiers
Mindat Occurrence Record ID:655671
Long-form Identifier:1:3:655671:6
GUID (UUID V4):0
References
Melville, William Harlow (1892), Tourmaline from Nevada County, California: USGS Bulletin 90: 39
Lukesh, Joseph & Martin J. Buerger (1942), The tridymite problem (abstract): American Mineralogist: 27: 143
Murdoch, Joseph; Webb, Robert Wallace (1966) Minerals of California, Centennial Volume (1866-1966) - California Division of Mines and Geology, Bulletin 189. California Division of Mines and Geology. 559 pp.
 
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