List of Gemstones | Rare Minerals | Gem stones | Gems » tremolite http://www.all-gemstones.com www.all-gemstones.com    Thu, 06 May 2010 12:29:47 +0000 http://wordpress.org/?v=2.8.6 en hourly 1 Tremolite http://www.all-gemstones.com/tremolite http://www.all-gemstones.com/tremolite#comments Tue, 29 Dec 2009 05:52:13 +0000 admin http://www.all-gemstones.com/?p=1419 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
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

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 ]]> http://www.all-gemstones.com/tremolite/feed 0