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Celadonite

#DP34932
SOLD
Celadonite from Poudrette quarry, Mont Saint-Hilaire, Montérégie, Québec, Canada - DP34932
Celadonite from Poudrette quarry, Mont Saint-Hilaire, Montérégie, Québec, Canada - DP34932

Celadonite

#DP34932
Availability
Sold
Size
3 x 2 x 1 cm - Thumbnail 
Formula
KMgFe3+Si4O10(OH)2 (RRUFF)
Locality
Poudrette quarry, Mont Saint-Hilaire, Montérégie, Québec, Canada

Green fine grained Celadonite. Celadonite is a phyllosilicate and mica group member. It is an ordinary (True or Common) Mica - Dioctahderal. Mostly or ideally (?) aluminum free mica, with Mg & Fe in the (M) positions. For more information on Mica minerals and other phyllosilicates please reference our article - Click Here.

Per (Bernard and Hyrsl) usually as earthy fillings in amygdules and replacement after Augite. Very rare in minute crystals. Also as micaceous scales, widespread in formations of altered volcanic rocks on intermediate basaltic compositions and commonly associated with Montmorillonite.

Celadonite

Formula
KMgFe3+Si4O10(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Earthy, Aggregates, Encrustations 
Cleavage
Perfect, None, None 
Luster
Earthy (Dull) 
Color
gray green, bluish green 
Streak
greenish white 
Class
Monoclinic - Prismatic 
Fracture
Earthy 
Hardness
2 

Data courtesy of Webmineral.

Collection
Polak Collection
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