LithoCat

MineralCornubite
FormulaCu5(AsO4)2(OH)4
Crystal FormTriclinic/Pinacoidal [1]
CleavageDistinct/Good. Two perpendicular to {211}, intersecting ~70 deg.
ColorApple green, light to dark green
Density4.6 – 4.8 g/cm3
DiaphaneityTransparent, Translucent
FractureIrregular/Uneven, Sub-conchoidal
Hardness4.0
LustreSub-vitreous, Resinous, Waxy, Greasy
Streaklight green
Dana 8 Class41.4.2.1
Strunz Class7/B.11-50
Mindatmindat.org
WebMineralWebMineral
ID252