Locality type: | Occurrence |
Classification |
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Species: | 'Biotite' (not an IMA approved species) |
Formula: | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
Confirmation |
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Validity: | Believed Valid |
Data |
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Mineral Data: | Click here to view Biotite data |
Locality Data: | Click here to view Bear Mountain occurrence, Sheenjek Mining District, Yukon-Koyukuk Census Area, Alaska, USA |
Data Identifiers |
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Mindat Occurrence Record ID: | 614819 |
Long-form Identifier: | 1:3:614819:5 |
GUID (UUID V4): | c3bcc35d-0a22-45d7-9dd2-81e1dd94c90a |
References |
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Reference Search (possible matching items) |
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| | Journal (article/letter/editorial) | Tungsten-RichPorphyry MolybdenumOccurrenceat Bear Mountain, Northeast Alaska JAMESC. BARKER U.S. Bureauof Mines...Mines,206 O'Neill Resources Building,Universityof Alaska,Fairbanks,Alaska99775-5140 AND R. C. SWAINBANK GeoprizeLtd...complex. Introduction BEAR MOUNTAIN Local Geology is located in a remote area on the Metasedimenta...southflank of the BrooksRange in northeastAlaska the map area (Fig. 2); however,contactrelationships about 20...felsicrocksnearBear Paleozoic.Quartz-pebbleconglomerate Mountain. which overlies the siltstone-phylliteunit crops |
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