General Information:
Chemical Formula:Cu(AsO3OH)·2(H2O)
Composition:(Molecular Weight = 239.50 gm)Copper 26.53 %
CuArsenic 31.28 %
AsHydrogen 2.10 %
H Oxygen 40.08 %
O Empirical Formula: Cu(AsO3OH)·2(H2O)
Environment:Gold-bearing sulfo-arsenic ore.
IMA Status:Approved IMA (Dana # Added)
Locality:Salsigne mine near Carcassone, Aude, France.
Name Origin:Named in honor of Klaus Yvon, professor of crystallography at the University of Geneva, Switzerland.
Physical Properties: Cleavage:[100] Perfect, [010] Poor
Color:turquoise blue.
Density:3.2
Diaphaniety:Transparent
Habits:Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite), Spherical - Spherical, rounded aggregates.,
Hardness:3.5-4 - Copper Penny-Flourite
Luminescence:Non-fluorescent.
Luster:Vitreous (Glassy)
Streak:blue
More details...
