Spodumene
| Refractive Index : 1.676 – 1.662 (+0.005 – 0.005) |
| Optical Characteristic : DR, B+ |
| Specific Gravity : 3.18 (+0.03 – 0.03) |
| Formula : LiAISi2O6 |
| Crystal System : Monoclinic |
| Variety/Species : spodumene |
| Species/Group : Pyroxene group |
| Birefringence : 0.014 |
| Dispersion : 0.017 |
| Hardness : 6.5 to 7 |
| Toughness : poor |
| Ultrasonic : Never |
| Steam : Never |
| UV Long : Inert |
| UV Short : Inert |
| Pleochroism : 2 colors |
| Strength : moderate |
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| Pleochroism Colors : |
| Heat : sensitive |
| Acids : Avoid hydrofluoric acid |
| Light : stable |
| Polish Luster : vitreous |
| Fracture : Uneven to splintery |
| Fracture Luster : Vitreous |
| Clarity Type : l |
| Tones : 2-4 |
| Saturations : 1-4 |
| Cause of Color : chromium |
| Enhancements : lrradiation |
| Cleavage : perfect 1 direction. |
| Color Range : Pink, bluish purple, green, yellow, colorless, blue (very rare), pinkish, purplish, greenish, yellowish colored varieties light in tone. See also: Kunzite , Hiddenite, Triphane |
| Transparency : Transparent |
| Phenomena : chatoyancy, cat’s eye, Tenebrescence |
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| Separations : Spodumene from- Tourmaline : RI, birefringence, optic character, SG, fluorescence Peridot : RI, SG, birefringence, Spectrum, cleavage Beryl : RI, SG, optic character, cleavage Komerupine : optic sign, SG, spectrum, fluorescence Phenakite: optic character, SG, cleavage, fluorescence (possibly) Euclase: birefringence, SG, cleavage, fluorescence, color (possibly) |
| Identifying Characteristics and information Liquid inclusions. |
| Spectral Data See varieties (Kunzite, Hiddenite, Triphane). |
| Trade Names and Misnomers Cat’s Eye Spodumene Hiddenite (S) Kunzite(S) Pinite Spodumene Triphane (S) |
Tags: Hiddenite, Kunzite, Spodumene, triphane
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