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Zoisite var. tanzanite

#52328
SOLD
Zoisite from Merelani Hills, Umba Valley, Lelatema Mts., Arusha, Tanzania - 52328
Zoisite from Merelani Hills, Umba Valley, Lelatema Mts., Arusha, Tanzania - 52328

Zoisite var. tanzanite

#52328
Availability
Sold
Size
1.1 x 0.6 x 0.5 cm - Thumbnail 
Formula
Ca2Al3(Si2O7)(SiO4)O(OH) (RRUFF)
Locality
Merelani Hills, Umba Valley, Lelatema Mts., Arusha, Tanzania

A very nice gemmy cyrstal with a good fine termination and exhibits a slight dichroism.

Gem Quality

Zoisite

Formula
Ca2Al3(Si2O7)(SiO4)O(OH) 
Crystal System
Orthorhombic 
Crystal Habit
Prismatic, Striated, Columnar 
Cleavage
Perfect, None, None 
Luster
Vitreous - Pearly 
Color
gray, apple green, brown, blue, rose red 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Even 
Hardness
6.5 

Data courtesy of Webmineral.

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