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- Tanzanite abstract "Tanzanite is the blue/purple variety of the mineral zoisite (a calcium aluminium hydroxyl Sorosilicate) belonging to the epidote group. It was discovered in the Mererani Hills of Manyara Region in Northern Tanzania in 1967, near the city of Arusha and Mount Kilimanjaro. Tanzanite is used as a gemstone, and naturally-formed tanzanite is extremely rare, still found only in 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 fluorescent 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.The mineral was named by Tiffany & Co. after Tanzania, the country in which it was discovered. In 2002, the American Gem Trade Association chose Tanzanite as a December birthstone, the first change to their birthstone list since 1912.The world's largest cut tanzanite recognized by Guinness World Records is 252.2 carats, and the largest rough tanzanite was a 16,839 carat (3.38 kg, or 7.46 lb) stone mined by TanzaniteOne in 2005.".
- Tanzanite thumbnail Zoïsite_(Tanzanite).jpg?width=300.
- Tanzanite wikiPageExternalLink tanzanite.html.
- Tanzanite wikiPageExternalLink ?id=4119.
- Tanzanite wikiPageExternalLink munich09_tanz.jpg.
- Tanzanite wikiPageExternalLink 4-tanzanite-july-7-1967-tanzanite-something-new-out-of-africa-but-no-one-knew-what-it-was.
- Tanzanite wikiPageExternalLink 0,9171,1594137-1,00.html.
- Tanzanite wikiPageExternalLink 0,9171,900582,00.html.
- Tanzanite wikiPageID "308210".
- Tanzanite wikiPageRevisionID "605783862".
- Tanzanite birefringence "0.006".
- Tanzanite caption "Tanzanite rough stone and cut stone".
- Tanzanite category Silicate_minerals.
- Tanzanite cleavage "Perfect {010}, imperfect {100}".
- Tanzanite color "Purple to blue".
- Tanzanite formula "+".
- Tanzanite fracture "Uneven to conchoidal".
- Tanzanite gravity "3.1".
- Tanzanite habit "Prismatic crystals with striations; massive to columnar".
- Tanzanite hasPhotoCollection Tanzanite.
- Tanzanite luster "Vitreous, pearly on cleavage surfaces".
- Tanzanite mohs "6.5".
- Tanzanite name "Tanzanite".
- Tanzanite opticalprop "biaxial positive".
- Tanzanite pleochroism "Present, dichroism or trichroism depending on color.".
- Tanzanite refractive "1.69".
- Tanzanite streak "White or colorless".
- Tanzanite strunz "9".
- Tanzanite system Orthorhombic_crystal_system.
- Tanzanite twinning "penetration twins".
- Tanzanite wordnet_type synset-mineral-noun-1.
- Tanzanite subject Category:Epidote_group.
- Tanzanite subject Category:Gemstones.
- Tanzanite type Abstraction100002137.
- Tanzanite type Material114580897.
- Tanzanite type Matter100020827.
- Tanzanite type Mineral114662574.
- Tanzanite type Part113809207.
- Tanzanite type PhysicalEntity100001930.
- Tanzanite type Relation100031921.
- Tanzanite type Substance100019613.
- Tanzanite type ChemicalSubstance.
- Tanzanite type Mineral.
- Tanzanite type ChemicalObject.
- Tanzanite type Thing.
- Tanzanite comment "Tanzanite is the blue/purple variety of the mineral zoisite (a calcium aluminium hydroxyl Sorosilicate) belonging to the epidote group. It was discovered in the Mererani Hills of Manyara Region in Northern Tanzania in 1967, near the city of Arusha and Mount Kilimanjaro.".
- Tanzanite label "Tansanit".
- Tanzanite label "Tanzaniet".
- Tanzanite label "Tanzanit".
- Tanzanite label "Tanzanita".
- Tanzanite label "Tanzanite".
- Tanzanite label "Tanzanite".
- Tanzanite label "Tanzanite".
- Tanzanite label "Tanzanite".
- Tanzanite label "Танзанит".
- Tanzanite label "タンザナイト".
- Tanzanite sameAs Tansanit.
- Tanzanite sameAs Tanzanita.
- Tanzanite sameAs Tanzanite.
- Tanzanite sameAs Tanzanite.
- Tanzanite sameAs タンザナイト.
- Tanzanite sameAs Tanzaniet.
- Tanzanite sameAs Tanzanit.
- Tanzanite sameAs Tanzanite.
- Tanzanite sameAs m.01stxp.
- Tanzanite sameAs Q429942.
- Tanzanite sameAs Q429942.
- Tanzanite sameAs Tanzanite.
- Tanzanite wasDerivedFrom Tanzanite?oldid=605783862.
- Tanzanite depiction Zoïsite_(Tanzanite).jpg.
- Tanzanite isPrimaryTopicOf Tanzanite.
- Tanzanite name "Tanzanite".