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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Titanium-bearing Biotite from
Thermes ore field, Myki, Xanthi, Eastern Macedonia and Thrace, Greece


Locality type:Ore Field
Classification
Species:Biotite var: Titanium-bearing Biotite
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Comments:- Symplectites with oligoclase
- Associated with hogbomite (TiO2 up to 6.7 wt % in biotite)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Titanium-bearing Biotite data
Locality Data:Click here to view Thermes ore field, Myki, Xanthi, Eastern Macedonia and Thrace, Greece
Data Identifiers
Mindat Occurrence Record ID:320437
Long-form Identifier:1:3:320437:5
GUID (UUID V4):0
References
Liati, Anthi, Seidel, Eberhard (1994) Sapphirine and högbomite in overprinted kyanite-eclogites of central Rhodope, N. Greece: first evidence of granulite-facies metamorphism. European Journal of Mineralogy, 6 (5) 733-738 doi:10.1127/ejm/6/5/0733
 
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