God for us to design products, we are the porters of nature!
| Nepheline | |
Chemical Formula |
(Na,K)AlSiO4 |
Species |
Silicates |
Crystal System |
Hexagonal |
Mohs Scale |
5-6 |
Specific Gravity |
2.55-2.65 |
Color |
White, Gray, Brown, Brownish gray, Reddish white |
Streak |
White |
Luster |
Vitreous, Greasy |
Refractive Index |
n = 1.529 - 1.546 n = 1.526 - 1.542 |
Diaphaneity |
Transparent, Opaque |
Cleavage |
Poor/IndistinctPoor on , |
Fracture |
Sub-Conchoidal |
| Crystal Habit：Massive granular to prismatic | |
| Geological Setting：Characteristic of alkaline igneous rocks. | |
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