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0 item @ $0.00  

Topaz

#50642

Topaz

#50642
Availability
Sold
Size
3.5 x 3 x 2.5 cm - Miniature 
Formula
Al2SiO4F2 (RRUFF)
Locality
Yuno, Shigar Valley, Baltistan, Northern Areas, Pakistan

Sherry colored, very gemmy, sharp, complex and lustrous Topaz crystal to 3.3cm on a matrix of cleavelandite.

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

Data courtesy of Webmineral.

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