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MINERAL IDENTIFICATION PROJECT |
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Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | kyanite | 6.00 | parallel | Splintery | Translucent | none | 3.67 | glassy | blue | white | prismatic | silicates | Hardness 4-5 along cleavage planes and 6-7 across cleavage. Glassy luster on cleavage faces. Transparent to opaque. Polymorph with andalusite and sillimanite. |
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