|
Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | herkimer diamonds (quartz) | 7.00 | none | conchoidal | Transparent | none | 2.65 | glassy | clear | white | faceted | silicates | Double terminated quartz with and without prism faces |
|