LithoCat

MineralFluorapophyllite-(K)
FormulaKCa4(Si8O20)(F,OH) ยท 8H2O
Crystal FormTetragonal/Ditetragonal-Dipyramidal [4/m 2/m 2/m]
CleavagePerfect on {001}, Imperfect on {110}
ColorColourless, pale green, aquamarine, white, pink, yellow
Density2.3 – 2.4 g/cm3
DiaphaneityTransparent, Translucent
FractureIrregular/Uneven
Hardness4.5 - 5.0
LustreVitreous, Pearly
StreakWhite
Dana 8 Class72.3.1.1
Strunz Class8/H.01-20
Mindatmindat.org
WebMineralWebMineral
ID381