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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Petroleum from
Green Ridge Breccia, Green Ridge, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA


Locality type:Formation
Classification
Species:'Petroleum' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Petroleum data
Locality Data:Click here to view Green Ridge Breccia, Green Ridge, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:1509554
Long-form Identifier:1:3:1509554:3
GUID (UUID V4):0
References
Feely, Martin, Costanzo, Alessandra, Lindner, Franzisca, George, Joe, Parnell, John, Bowden, Stephen, Baba, Mas’ud, Owens, Peter (2017) Quartz-Amethyst Hosted Hydrocarbon-Bearing Fluid Inclusions from the Green Ridge Breccia in the Snoqualmie Granite, North Cascades, WA, USA. Minerals, 7 (9). 174 doi:10.3390/min7090174
 
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