Magbasite

General Information: Chemical Formula:KBa(Al,Sc)(Mg,Fe++)6Si6O20F2 Composition:(Molecular Weight = 943.31 gm)Potassium 4.14 % K Barium 14.56 % BaMagnesium 10.31 % MgScandium 1.19 % ScAluminum 2.15 % AlIron 11.84 % FeSilicon 17.86 % SiOxygen 33.92 % O Fluorine 4.03 % F  Empirical Formula: KBaAl0.75Sc0.25Mg4Fe2+2Si6O20F2 Environment:Hydorthermal deposits. IMA Status:Approved IMA 1965 Locality:Asian part of Russia. Name Origin:Named after its composition of Mg, Ba, and Si.Physical Properties: Color:colorless or pink violet. Density:3.41 Diaphaniety:Transparent Habits:Fibrous - Crystals made up of fibers., , Hardness:5 - Apatite Luster:Vitreous (Glassy) Streak:whiteMore details...