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Ferroceladonite with Albite

#57588

Ferroceladonite with Albite

#57588
Availability
Sold
Size
5.5 x 4.5 x 3 cm - Sm Cabinet 
Formula
KFe2+Fe3+Si4O10(OH)2 (RRUFF)
Locality
Poudrette quarry, Mont Saint-Hilaire, Montérégie, Québec, Canada

Very fine-grained green scaley crystals throughout mass with Albite.

Ferroceladonite is phyllosilicate and mica group member. It is an Ordinary (True or Common) Mica - Dioctahderal. The iron(II) analog of Celadonite. Only a handful of localities worldwide. According to Bernard and Hrysl, occurs as submicrometric grains, pale green to bluish green in vesicles with chlorite. For more information on Mica minerals and other phyllosilicates please reference our article - Click Here.

Ferroceladonite

Formula
KFe2+Fe3+Si4O10(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Microscopic Crystals 
Cleavage
Perfect, None, None 
Luster
Earthy (Dull) 
Color
dark bluish green 
Streak
paler green 
Class
Monoclinic - Prismatic 
Fracture
Earthy 
Hardness
2-2.5 

Data courtesy of Webmineral.

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