Sugilite

Sugilite has a complex chemical formula and it is found in Japan. It is found in an aegirine syenite intrusive stock, some localities it is found in a strata-bound manganese deposit. It can also be referred to as lavulite and royal azel by gem collectors.

Species: member of osumilite ♦ Chemistry: Kna2Fe3+2 (Li3Si12)O30 ♦ Color: purple, violet, light brownish-yellow, colorless in light ♦ Cleavage: poor ♦ Fracture: fibrous ♦ Transparency: transparent, translucent ♦ Luster: vitreous ♦ Crystal System: hexagonal♦ Moh's Hardness: 5.5-6.5 ♦ Localities: Japan, Canada, South Africa, Italy, Australia, India.