Tanzanite Ring / raw / new- 4.04 g - (1)

Ring Tanzanite / rough / new Set in 925 sterling silver Weight: 4.04 g 18.2 mm x 15.9 mm New and unworn Ring size: U 57 UK P 1/2 US 8.0 Fr 17 Inner diameter: 18.1 mm The ring size is somewhat variable; see photo 4 Tanzanite is a blue to violet variety of the mineral zoisite. Like the pink variety thulite, it is used exclusively as a gemstone. As with zoisite, Tanzanite crystallizes in the orthorhombic crystal system and typically forms transparent, prism-like to columnar crystals that can reach several centimeters in length and show a glassy luster on the surfaces. Cleavage planes, by contrast, shimmer more pearly. Shipping as insured registered mail

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