Raguinite

General Information: Chemical Formula:TlFeS2 Composition:(Molecular Weight = 324.36 gm)Thallium 63.01 % TlIron 17.22 % FeSulfur 19.77 % S  Empirical Formula: TlFe2+S2 IMA Status:Approved IMA 1969 Locality:Allchar, Macedonia. Name Origin:Named for Eugene Raguin (1900-), French geologist.Physical Properties: Cleavage:None Color:bronze. Density:6.4 Diaphaniety:Opaque Habits:Microscopic Crystals - Crystals visible only with microscopes., Pseudo Hexagonal - Crystals show a hexagonal outline., Luster:MetallicMore details...