LithoCat

MineralProsopite
FormulaCaAl2(F,OH)8
Crystal FormMonoclinic/Prismatic [2/m]
CleavagePerfect on {111}
ColorGreyish, White, Colorless
Density2.9 – 2.9 g/cm3
DiaphaneityTransparent, Translucent
FractureIrregular/Uneven, Conchoidal
Hardness4.5
LustreVitreous, Dull
StreakWhite
Dana 8 Class11.6.9.1
Strunz Class3/C.03-10
Mindatmindat.org
WebMineralWebMineral
ID307