7.46 ct Vivid Blue Tanzanite With Excellent Luster And Fine Cutting Gemston

Item Information

Dimensions (mm) 12.06 x 11.95 x 8.13mm
Weight (carats) 7.46 carats
Colors
Certified Gemstone
Clarity (IF)

Description

Tanzanite is the blue and violet variety of the mineral zoisite, caused by small amounts of vanadium. Tanzanite belongs to the epidote mineral group. Tanzanite is only found in Tanzania, in a very small mining area near the Mererani Hills. Wikipedia
Color: Blue, Purple
Luster: Vitreous
Associated month: December
Crystal system: Orthorhombic crystal system
Chemical formula: Ca₂Al₃(SiO₄)₃(OH)
Hardness (Mohs hardness scale): 6 – 6.5
Mineral class: Zoisite

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Pricing & Details

Bid Increment $1
Starting Bid $1
Auction ID 1665546
Watchers 7 watching
Viewed 252 times
Starts 23rd Nov 2021 1:10am PST
Ends 30th Nov 2021 1:13am PST

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