LithoCat

MineralHanksite
FormulaNa22K(SO4)9(CO3)2Cl
Crystal FormHexagonal/Dipyramidal [6/m]
CleavageGood on {0001}
ColorColorless to grey, yellow or almost black; colorless in transmitted light
Density2.6 – 2.6 g/cm3
DiaphaneityTransparent, Translucent
FractureIrregular/Uneven
Hardness3.0 - 3.5
LustreVitreous, Dull
StreakWhite
Type Loc.Searles Lake, San Bernardino Co., CA, USA
Dana 8 Class32.3.1.1
Strunz Class6/B.14-30
Mindatmindat.org
WebMineralWebMineral
ID380