General Information:
Chemical Formula:
(Zn,Cu)5Al3(SO4)1.5(OH)16·9(H2O)
Composition:
(Molecular Weight = 982.56 gm)
Aluminum 8.24 % Al
Zinc 19.97 % Zn
Copper 12.93 % Cu
Hydrogen 3.49 % H
Sulfur 4.90 % S
Oxygen 50.48 % O
Empirical Formula:
Zn3Cu2Al3(SO4)1.5(OH)16·9(H2O)
Environment:
Ancient lead slags.
Locality:
Laurium, Greece.
Name Origin:
Named from the Greek for "blue" and "waxlike".
Physical Properties:
Cleavage:
[???] Perfect
Color:
white, sky blue, gray, greenish, or brownish.
Density:
2.4
Diaphaniety:
Transparent
Habits:
Aggregates - Made of numerous individual crystals or clusters., Nodular - Tuberose forms having irregular protuberances over the surface., Radial - Crystals radiate from a center with out producing stellar forms (e.g. stibni
Hardness:
1 - Talc
Luster:
Waxy
Streak:
bluish white
More details...