General Information:
Chemical Formula:
KBa(Al,Sc)(Mg,Fe++)6Si6O20F2
Composition:
(Molecular Weight = 943.31 gm)
Potassium 4.14 % K
Barium 14.56 % Ba
Magnesium 10.31 % Mg
Scandium 1.19 % Sc
Aluminum 2.15 % Al
Iron 11.84 % Fe
Silicon 17.86 % Si
Oxygen 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:
white
More details...