|
Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | lazulite | 5.00 | basal | Uneven | Translucent | none | 3.00 | glassy | blue | blue | faceted | phosphates | Pale blue to white streak. Found in high-silicic igneous and metamorphic rocks. |
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