Difference between revisions of "Moonstone"
From The Gemology Project
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+ | [[Image:Moon-adul.JPG|left|framed|Blue sheen moonstone beads]]<br clear="left" /> |
Revision as of 09:12, 11 December 2006
Moonstone | |
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Chemical composition | K-feldspar |
Crystal system | Monoclinic |
Habit | Prismatic |
Cleavage | Distinct to perfect |
Fracture | Conchoidal |
Hardness | 6 |
Optic nature | Biaxial - |
Refractive index | ± 1.52 |
Specific gravity | 2.56 |
Lustre | Vitreous |