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Biotite (Var: Rubellan)
Specimen ID:
LA5-4T9
Mineral(s)
Biotite
(Var:
Rubellan
) :
K(Fe
2+
/Mg)
2
(Al/Fe
3+
/Mg/Ti)([Si/Al/Fe]
2
Si
2
O
10
)(OH/F)
2
Locality
Mindat locality:
Lorenzfelsen, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
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Photos
Events
Photo added to mindat.org
“
1.5 cm "crystal" of rubellan in matrix, labeled as being 'hydrobiotite var. rubellan'. S244-17 Excalibur Mineral specimen.
”
Jeff Weissman
- 3rd January 2008
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