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Personne àcontacter Mr. Larry
801 Rowdy Drive, Royse City, Texas
Tanzanite is the blue/violet variety of the minerak zoisite (a
calcium aluminium hydroxyl Soroslicate)belonging to the epidote
group. It was discovered in the Mererani Hills of Manyara region in
Northern Tanzania in ***7, near the city of Arusha and mount
kilimanjaro Tanzanite is used as a gemstone. Naturally formed
tanzanite is extremely rare and is endemic only to the Mererani
Hills.
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 appear more evident
when subjected to fluorecent light and the violet hues can be seen
readily when viewed under incandescent illumination. Tanzanite is
usually a reddish brown in its rough state, requiring artificial
heat treatment to bring out the blue violet of the stone.
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