Altisite

General Information: Chemical Formula:Na3K6Ti2Al2Si8O26Cl3 Composition:(Molecular Weight = 1,200.31 gm)Potassium 19.54 % K Sodium 5.75 % NaTitanium 7.98 % TiAluminum 4.50 % AlSilicon 18.72 % SiChlorine 8.86 % ClOxygen 34.66 % O  Empirical Formula: Na3K6Ti2Al2(Si8O26)Cl3 Environment:In the interstices of pectolite crystals in a hyperagpaitic pegmatite. IMA Status:Approved IMA 1993 Locality:TL: In a drill core from the Oleny Stream apatite deposit in the southeastern part of the Khibina alkaline massif, Kola Peninsula, Russia. Name Origin:Name for the elements Al, Ti, and Si in the composition.Physical Properties: Cleavage:None Color:white. Density:2.64 - 2.67, Average = 2.65 Diaphaniety:Transparent Habits:Anhedral Grains - Granular minerals without the expression of crystal shapes, , Hardness:6 - Orthoclase Luminescence:Non-fluorescent. Luster:Vitreous (Glassy) Streak:whiteMore details...