Vote for your favorite mineral in #MinCup26! - Erythrite vs. Skutterudite
Pretty pink and poisonous Erythrite is against its shiny silver and structurally-useful Skutterudite.
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Biotite from
Jaguaraçu pegmatite, Jaguaraçu, Minas Gerais, Brazil


Locality type:Pegmatite
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
Associated Minerals Based on Photo Data:
Milarite3
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Jaguaraçu pegmatite, Jaguaraçu, Minas Gerais, Brazil
Data Identifiers
Mindat Occurrence Record ID:1997
Long-form Identifier:1:3:1997:2
GUID (UUID V4):0
Nearest other occurrences of Biotite
36.6km (22.7 miles) ⓘPiteiras Mine, Itabira, Minas Gerais, Brazil
References
Cassedanne, Jacques P., Alves, Jeanete (1994) The Jaguaraçu Pegmatite, Minas Gerais, Brazil. The Mineralogical Record, 25 (3) 165-170
 
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