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Topaz

#63385
SOLD
Topaz from St. Ann's mine, Mwami, Zimbabwe - 63385
Topaz from St. Ann's mine, Mwami, Zimbabwe - 63385

Topaz

#63385
Availability
Sold
Size
5.5 x 4 x 3 cm - Sm Cabinet 
Formula
Al2SiO4F2 (RRUFF)
Locality
St. Ann's mine, Mwami, Zimbabwe

A chunk of beautiful blue, glassy and gemmy Topaz, a good lapidary specimen for making jewels of blue Topaz.

Topaz

Formula
Al2SiO4F2 
Crystal System
Orthorhombic 
Crystal Habit
Crystalline - Coarse, Prismatic, Massive - Granular 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, pale blue, yellow, yellowish brown, red 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Uneven 
Hardness
8 

Data courtesy of Webmineral.

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