General Information:
Chemical Formula:Ba(Mn,Fe++)2TiO(Si2O7)(OH,F)2
Composition:(Molecular Weight = 514.71 gm)Barium 26.68 %
BaTitanium 9.30 %
TiManganese 16.01 %
MnIron 5.43 %
FeSilicon 10.91 %
SiHydrogen 0.29 %
H Oxygen 29.53 %
O Fluorine 1.85 %
F Empirical Formula: BaMn2+1.5Fe2+0.5TiO(Si2O7)(OH)1.5F0.5
IMA Status:Approved IMA
Physical Properties: Cleavage:[???] Perfect
Color:golden yellow or orange brown.
Density:4.016
Diaphaniety:Translucent
Hardness:4.5 - Between Fluorite and Apatite
Luster:Vitreous (Glassy)
Streak:brown yellow
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