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Tanzanite

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MGR818840

Tanzanite

Gem Crystal

Description Tabs

Description
Locality: 
Merelani Hills, Arusha Region, Tanzania (United Republic)
Class: 
Single Crystal
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 1.9 × 1.8 cm
Description

My New Years rocket for e-rocks - 60mm tall, 42 gramm or 210 carat weight - a dramatic blue and purple tanzanite crystal with strong magenta color up the C-axis. The elongated habit makes it look very elegant. There are some minor - barely visible with naked eye - chips along some edges; again nearly visible but I have to mention when we speak about a specimen in this category. The internal brilliance and the surface luster are both very high, and the saturated blue color is at the top of the spectrum for what you could ask for in a tanzanite. When it is lit from behind, it glows from across a room. These photos show only moderate, not very strong, backlighting. A wonderful piece!

Mineral Data
What's on the rock

Tanzanite

Variety Of: 

Zoisite

Formula: 
{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.10
Hardness: 
6.0 - 7.0
Type Locality: 
Merelani Hills, Arusha Region, Tanzania