General Information:
Chemical Formula:Na6Mn++Ti[Si10O24(OH)](OH)3·4(H2O)
Composition:(Molecular Weight = 1,045.69 gm)Sodium 13.19 %
NaTitanium 4.58 %
TiManganese 5.25 %
MnSilicon 26.86 %
SiHydrogen 1.16 %
H Oxygen 48.96 %
O Empirical Formula: Na6Mn2+TiSi10O24(OH)4·4(H2O)
Environment:In hyperagpaitic pegmatites.
IMA Status:Approved IMA 1994 (Dana # Added)
Locality:Mount Alluaiv in the northwestern part of the Lovozero alkaline massif, Kola Peninsula, Russia.
Name Origin:Named in allusion to it's intermediate position between the layered and banded silicates.
Physical Properties: Cleavage:[100] Perfect
Color:yellow, pinkish yellow, or pink.
Density:2.42
Diaphaniety:Transparent to Translucent
Habits:Anhedral Grains - Granular minerals without the expression of crystal shapes, ,
Hardness:3-4 - Calcite-Fluorite
Luster:Vitreous - Greasy
Streak:white
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