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Amesite

#48354

Amesite

#48354
Availability
Sold
Size
4.5 x 3 x 1 cm - Miniature 
Formula
Mg2Al(SiAl)O5(OH)4 (RRUFF)
Locality
Saranovskii mine, Urals Region, Russia

Purple translucent crystals of Amesite to nearly 5mm. Amesite is a phyllosilicate and member of the serpentine group. It is formed in low grade metamorphic environments. These crystals are pseudohexagonal often tapering along the c-axis. They are stunning under the scope. The purple most likely is due to chromium impurity.

Amesite

Formula
Mg2Al(SiAl)O5(OH)4 
Crystal System
Triclinic 
Crystal Habit
Micaceous, Foliated, Pseudo Hexagonal 
Cleavage
Perfect, None, None 
Luster
Pearly 
Color
white, light green 
Streak
pale green 
Class
Triclinic - Pedial 
Hardness
2.5-3 

Data courtesy of Webmineral.

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