|
Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | chalcanthite | 2.50 | poor | conchoidal | Transparent | none | 2.30 | glassy | blue | white | tabular | sulfates | Sky blue color. Natural crystals are micro to small sized. Very soluble in water. I've read that it's easy to grow your own crystals from supersaturated solutions. |
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