God for us to design products, we are the porters of nature!
| Lazurite | |
Chemical Formula |
(Na,Ca)8[(S,Cl,SO4,OH)2|(Al6Si6O24)] |
Species |
Silicates |
Crystal System |
Isometric |
Mohs Scale |
5 |
Specific Gravity |
2.38-2.45 |
Color |
Deep blue, azure, Purple-blue, greenish blue |
Streak |
Bright blue |
Luster |
Vitreous |
Refractive Index |
n = 1.502 - 1.522 |
Diaphaneity |
Transparent, Opaque |
Cleavage |
Imperfect/FairImperfect on |
Fracture |
Irregular/Uneven |
| Crystal Habit：Crystals occur as dodecahedra, or rarely cubes; granular, disseminated, or massive | |
| Geological Setting：Contact metamorphic mineral in limestones. | |
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