LithoCat

MineralUranopilite
Formula(UO2)6(SO4)O2(OH)6 · 14H2O  
Crystal FormTriclinic/Pinacoidal [1]
CleavagePerfect On {010}
ColorBright yellow, straw-yellow; colorless to light yellow in transmitted light
Density3.7 – 4.0 g/cm3
DiaphaneityTranslucent
LustreSilky, Earthy
Type Loc.Jáchymov, Karlovy Vary Dist., Karlovy Vary Rgn., Bohemia, Czech Republic
Dana 8 Class31.2.6.1
Strunz Class7.EA.05
Mindatmindat.org
WebMineralWebMineral
ID513