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301ct

Natural Top Honey Color Chrysoberyl Cats Eye Gemstone Round Cab Certified 3.01ct

   Natural Top Apple Green Chrysoberyl Cats Eye Gemstone Round Cab Certified Unheat. 7.4 x 5.6 mm. Tanzanite is the blue/purple variety of the mineral zoisite (a calcium aluminium hydroxysilicate) which was discovered in the Mererani Hills of Northern Tanzania in 1967, near the city of Arusha and Mount Kilimanjaro. It is used as a gemstone. Tanzanite is noted for its remarkably strong trichroism, appearing alternately sapphire blue, violet and burgundy depending on crystal orientation. Tanzanite can also appear differently when viewed under alternate lighting conditions. The blues ...