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Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | jasper (quartz) | 7.00 | none | conchoidal | opaque | none | 2.65 | glassy | red | white | microcrystalline | silicates | Yellow, red, deep red color and black (touch stone). Jasper is said to be opaque relative to other microcrystalline quartz. Link isn't exactly what I wanted, but you can see the variety of colors jasper can have. |
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