Is aluminum silicate with formula Al2SiO5 and variable hardness along the directions: 4.5 -5 to 6.5-7 from the Mohs scale. Also called Distene from the greek word that means two strengths and ciano or kiano means blue color. Difficult to cut due to this fibrous structure and rare to find completely clean .This new find of Orange Kyanite has been presented in Tucson 2010 and comes from Nani, Loliando, Arusha Region, Tanzania. The crystals are small and rarely clean, the production is also very scarse. This gem here has some visible small inclusions.
Size: 12.2x7.6x2.8 mm.
Weight: 3.55 ct.