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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Biotite from
Heff Cu-Au skarn, Heffley Lake, Kamloops, Kamloops Mining Division, British Columbia, Canada


Locality type:Skarn
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Heff Cu-Au skarn, Heffley Lake, Kamloops, Kamloops Mining Division, British Columbia, Canada
Data Identifiers
Mindat Occurrence Record ID:745472
Long-form Identifier:1:3:745472:1
GUID (UUID V4):0
Nearest other occurrences of Biotite
37.8km (23.5 miles) ⓘAfton Mine, Kamloops, Kamloops Mining Division, British Columbia, Canada
41.1km (25.5 miles) ⓘCopper King Mine, Iron Mask Batholith, Kamloops Mining Division, British Columbia, Canada
41.7km (25.9 miles) ⓘAjax Cu-Au deposit, Kamloops, Kamloops Mining Division, British Columbia, Canada
50.8km (31.5 miles) ⓘCopper Creek Hg occurrence, Savona, Kamloops Mining Division, British Columbia, Canada
74.9km (46.5 miles) ⓘHarper Creek deposit, Adams Lake, Kamloops Mining Division, British Columbia, Canada
74.9km (46.6 miles) ⓘLucky Mike tungsten occurrence, Swakum Mountain, Merritt area, Nicola Mining Division, British Columbia, Canada
76.5km (47.6 miles) ⓘBethlehem Mine, Logan Lake, Kamloops Mining Division, British Columbia, Canada
78.4km (48.7 miles) ⓘHighland Valley Copper Mine, Logan Lake, Kamloops Mining Division, British Columbia, Canada
80.6km (50.1 miles) ⓘHighmont Pit, Highland Valley Copper Mine, Logan Lake, Kamloops Mining Division, British Columbia, Canada
81.6km (50.7 miles) ⓘLornex Pit, Highland Valley Copper Mine, Logan Lake, Kamloops Mining Division, British Columbia, Canada
References
G.E. Ray and I.C.L. Webster (2007): Geology and Chemistry of the Low Ti Magnetite-bearing Heff Cu-Au Skarn and its Associated Plutonic Rocks, Heffley Lake, South-Central British Columbia. Exploration and Mining Geology 16, 159-186.
 
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