Template:Enstatite
From The Gemology Project
Revision as of 01:40, 10 November 2006 by Africanuck (talk | contribs)
Enstatite | |
---|---|
Chemical composition | (Mg,Fe)SiO3
Magnesium Silicate |
Crystal system | orthorhombic |
Habit | crystals and waterworn pebbles |
Cleavage | distinct |
Fracture | sub-conchoidal |
Hardness | 5.5 |
Optic nature | biaxial + |
Refractive index | 1.65-1.68 |
Birefringence | 0.010 |
Dispersion | low, 0.010 |
Specific gravity | 3.3 |
Lustre | vitreous |
Pleochroism | strong to moderate |