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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 | tigers eye (quartz) | 7.00 | none | conchoidal | Translucent | none | 2.65 | glassy | orange | white | microcrystalline | silicates | Yellow to orange color. Hydrothermal replacement of "asbestos like" minerals with quartz. Chacteristic chatoyancy. Blue variety called hawk's eye. |
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