Tremolite
| Refractive Index : 1.643-1.560 |
| Optical Characteristic : DR, B- |
| Specific Gravity : 3.20-2.90 |
| Formula : Ca2Mg5Si8O22(OH)2 +Fe |
| Crystal System : Monoclinic |
| Variety/Species : Tremolite |
| Species/Group : Amphibole group |
| Birefringence : 0.017 – 0.028 |
| Dispersion : N/A |
| Hardness : 5 to 6 |
| Toughness : Good to poor |
| Ultrasonic : Never |
| Steam : Never |
| UV Long : Inert |
| UV Short : Inert |
| Pleochroism : 2 colors |
| Strength : N/A |
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| Pleochroism Colors :
Green gems: Light yellowish green/light green/green. Hexagonite : Bluish red/deep rose/deep red-violet |
| Heat : sensitive |
| Acids : sensitive |
| Light : stable |
| Polish Luster : vitreous |
| Fracture : Uneven |
| Fracture Luster : Vitreous to dull |
| Clarity Type : N/A |
| Tones : N/A |
| Saturations : N/A |
| Cause of Color : none |
| Enhancements : none |
| Cleavage : Good in 2 directions |
| Color Range : Colorless, white, purple, pink, green, brown, gray, purplish, pinkish, greenish, brownish, grayish |
| Transparency : Tranparent to opaque |
| Phenomena : Cat’s Eye (rare), Chatoyancy |
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| Separations : Tremolite from- |
| Identifying Characteristics and information Cleavage is perfect in 2 directions.The fibrous variety of the Actinolite-Tremolite series is the mauin constituent of Nephrite jade. Limited to rare availabity. |
| Spectral Data not diagnostic. |
| Trade Names and Misnomers Amianthus Asbestos Amphibole Cat’s Eye Tremolite Chrome-Tremolite Hexagonite Smaragdite |
Tags: tremolite
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