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Grey is anything but dull as trickster Pyrrhotite battles geometrically-unusual Cylindrite in this monochromatic matchup.
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Smoky Quartz from
Black Beauty Prospect, Crystal Mountain Pegmatite Mining District (Storm Mountain Mining District), Larimer County, Colorado, USA


Locality type:Prospect
Classification
Species:Quartz var: Smoky Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Smoky Quartz data
Locality Data:Click here to view Black Beauty Prospect, Crystal Mountain Pegmatite Mining District (Storm Mountain Mining District), Larimer County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:493262
Long-form Identifier:1:3:493262:8
GUID (UUID V4):0
References
Eckel, Edwin Butt; Cobban, Robert R.; Mosburg, Shirley K.; Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
 
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