Category Sorosilicate Crystal system Orthorhombic | Strunz classification 9.BJ.50 Space group Cmcm | |
Formula
(repeating unit) ([ ],Fe,Mg)(Mg,Al,Fe)5Al4Si2(Si,Al)2(B,Si,Al)(O,OH,F)22 Crystal class Dipyramidal (mmm)
H-M symbol: (2/m 2/m 2/m) | ||
Prismatine is an orthorhombic-dipyramidal mineral containing aluminum, boron, fluorine, hydrogen, iron, magnesium, oxygen, and silicon. It forms a solid solution series with kornerupine.
References
Prismatine Wikipedia(Text) CC BY-SA