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Tetraferriphlogopite

#46483
SOLD
Tetraferriphlogopite from Turii alkaline Massif, Kola Peninsula, Russia - 46483
Tetraferriphlogopite from Turii alkaline Massif, Kola Peninsula, Russia - 46483

Tetraferriphlogopite

#46483
Availability
Sold
Size
Chip < 1cm 
Formula
KMg3(Fe3+Si3O10)(OH,F)2 (RRUFF)
Locality
Turii alkaline Massif, Kola Peninsula, Russia

Tiny reddish plates in Quartz. Positively identified by Dr. Igor Pekov.

Phyllosilicate - Monoclinic - Mica group member. Ordinary (True or Common) Mica - Trioctahderal with Mg, some substitutions for of Fe3+ for silicon at the (T) positions and OH>F at (A) otherwise would be Fluorotetraferriphlogopite.

Found in ultrabasic alkaline massif of Kovdor.

Tetraferriphlogopite

Formula
KMg3(Si3Fe3+)O10(OH)2 
Crystal System
Monoclinic 
Class
Monoclinic - Prismatic 
Hardness

Data courtesy of Webmineral.

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