General Information:
Chemical Formula:Ba(Fe++,Mn)2TiSi2O7(O,OH)2
Composition:(Molecular Weight = 497.12 gm)Barium 27.62 %
BaTitanium 9.63 %
TiManganese 5.53 %
MnIron 16.85 %
FeSilicon 11.30 %
SiHydrogen 0.10 %
H Oxygen 28.97 %
O Empirical Formula: BaFe2+1.5Mn2+0.5TiSi2O8.5(OH)0.5
Environment:Alkaline igneous rocks.
Locality:Bayan Obo REE deposit, Inner Mongolia, Juangsu Province, China.
Name Origin:Named for the compostition (Ba, ferrous, Ti, Si).
Physical Properties: Cleavage:[001] Perfect, [010] Poor
Color:red, yellowish red, or light brown.
Density:3.96 - 4.25, Average = 4.1
Diaphaniety:Translucent
Habits:Granular - Generally occurs as anhedral to subhedral crystals in matrix., ,
Hardness:5 - Apatite
Luster:Vitreous (Glassy)
Streak:white
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