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Biotite from
Osumilite occurrence, Tranomaro, Amboasary Sud District, Anosy, Madagascar


Locality type:Occurrence
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 Osumilite occurrence, Tranomaro, Amboasary Sud District, Anosy, Madagascar
Data Identifiers
Mindat Occurrence Record ID:1297232
Long-form Identifier:1:3:1297232:0
GUID (UUID V4):0
Nearest other occurrences of Biotite
3.7km (2.3 miles) ⓘAmbindandrakemba, Tranomaro, Amboasary Sud District, Anosy, Madagascar
19.1km (11.9 miles) ⓘOsumilite occurrence 1, Mahaly, Amboasary Sud District, Anosy, Madagascar
45.0km (28.0 miles) ⓘManangotry (Manangotra), Isaka-Ivondro, Taolagnaro District, Anosy, Madagascar
72.3km (44.9 miles) ⓘCap Andrahomana, Andranobory, Taolagnaro District, Anosy, Madagascar
80.4km (49.9 miles) ⓘAmpasimena, Ampasimena, Taolagnaro District, Anosy, Madagascar
References
Holder, Robert M., Hacker, Bradley R., Horton, Forrest, Rakotondrazafy, A. F. Michel (2018) Ultrahigh-temperature osumilite gneisses in southern Madagascar record combined heat advection and high rates of radiogenic heat production in a long-lived high-Torogen. Journal of Metamorphic Geology, 36 (7) 855-880 doi:10.1111/jmg.12316
 
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