Tiger’s Eye
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| Refractive Index : 1.553-1.554 |
| Optical Characteristic : DR, AGG |
| Specific Gravity : 2.651 +.06 -.01 |
| Formula : SiO2 |
| Crystal System : Trigonal |
| Variety/Species : Tiger’s Eye |
| Species/Group : Quartz |
| Birefringence : 0.009 |
| Dispersion : N/A |
| Hardness : 7 |
| Toughness : Good |
| Ultrasonic : Uaually safe |
| Steam : Risky |
| UV Long : Inert |
| UV Short : Inert |
| Pleochroism : None |
| Strength : N/A |
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| Pleochroism Colors : None |
| Heat : Avoid aburt temperature change |
| Acids : avoid hydrofluoric acid |
| Light : Stable |
| Polish Luster : Vitreous |
| Fracture : Splintery to conchoidal |
| Fracture Luster : Vitreous to silky |
| Clarity Type : N/A |
| Tones : N/A |
| Saturations : N/A |
| Cause of Color : Iron oxide |
| Enhancements : Heating, dyeing, bleaching |
| Cleavage : None |
| Color Range : Brownish yellow, brownish red, yellowish brown, yellowish, brownish, reddish. |
| Transparency : Semitranslucent to Opaque |
| Phenomena : chatoyancy, cat’s eye |
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| Separations : Tiger’s Eye from- Chalcedony : Appearance, fracture, RI(possibly) Labradorite : RI, SG, optic character, clevage, labradirescence, twinning. Chrysoberyl : RI, SG, appearance(possibly) Tourmaline : RI, SG, spectrum Actinolite:RI,SG(possibly) |
| Identifying Characteristics and information Wavy, fibrous composition . |
| Spectral Data Not diagnostic |
| Trade Names and Misnomers Crocidolite(M) Tiger Iron Tiger`s Eye |
Tags: quartz, tigers eye
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