Star Enstatite
| Refractive Index : 1.673 – 1.663 (+0.010 – 0.010) |
| Optical Characteristic : DR, B+ |
| Specific Gravity : 3.25 (+0.15 – 0.02) |
| Formula : MgSiO3 |
| Crystal System : Orthorhombic |
| Variety/Species : Enstatite |
| Species/Group : Pyroxene group |
| Birefringence : 0.008 to 0.011 |
| Dispersion : none |
| Hardness : 5 to 6 |
| Toughness : poor |
| Ultrasonic : risky |
| Steam : Never |
| UV Long : Inert |
| UV Short : Inert |
| Pleochroism : 2 or 3 colors |
| Strength : weak to strong |
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| Pleochroism Colors : Press the |
| Heat : sensitive |
| Acids : Avoid hydrofluoric acid |
| Light : stable |
| Polish Luster : vitreous |
| Fracture : Uneven |
| Fracture Luster : Vitreous to pearly |
| Clarity Type : N/A |
| Tones : N/A |
| Saturations : N/A |
| Cause of Color : Iron |
| Enhancements : none |
| Cleavage : good in 1 directipn. |
| Color Range : Dark, reddish brown, brownish green, yellowish green Colorless, (rarely). Brownish, greenish |
| Transparency : Semitransparent to opaque |
| Phenomena : Adularescence, 4 ray or 6 ray |
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| Separations : Star Enstatite from- Star Diopside : birefringence, spectrum, color (possibly) |
| Identifying Characteristics and information No identifying characteristics. Use a combination of properties. Enstatite is part of a mineral series with hypersthene (which has higher properties). May show pnly 2 colors of plechroism. |
| Spectral Data Strong line at 5060. Often lines at 5475 and 4880. May have lines at 5090, 5025, 4830, 4590, 4490. |
| Trade Names and Misnomers Star Enstatite |
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