List of Gemstones | Rare Minerals | Gem stones | Gems » Tsavorite Garnet 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 Tsavorite http://www.all-gemstones.com/tsavorite-garnet http://www.all-gemstones.com/tsavorite-garnet#comments Sat, 26 Dec 2009 04:57:25 +0000 admin http://www.all-gemstones.com/?p=1426 Tsavorite Garnet Refractive Index : 1.740 + 0.020 – 0.070 Optical Characteristic : SR, ADR Specific Gravity : 3.61 + 0.12 – 0.04 Formula : Ca3AI2(SiO4)3 Crystal System : Cubic Variety/Species : Ugranite/Grossular Species/Group : Garnet group Birefringence : None Dispersion : 0.028 Hardness : 7 to 7.5 Toughness : Fair to good Ultrasonic : Usually safe Steam : Never UV Long : Inert to weak UV Short : Inert to weak Pleochroism : None Strength : N/A
Pleochroism Colors : None Heat : Avoid abrupt temperature change Acids : Avoid hydrofluoric acid Light : stable Polish Luster : vitreous Fracture : Conchoidal to uneven Fracture Luster : Greasy to vitreous Clarity Type : II Tones : 2-8 Saturations : 1-5 Cause of Color : Vanadium and traces of chromium Enhancements : None Cleavage : None Color Range : Green, through strongly, yellowish green, greenish Transparency : Transparent to semitransparent Phenomena : None
Separations : Tsavorite from-
Andradite : RI, SG, spectrum, magnificaton, dispersion

All corundum : RI, SG, birefringence, optic character, pleochroism, spectrum, magnification, fluorescence(possibly)
synthetic

Natural spinel : Magnificaton, fluorescence, polariscope reaction

Chrysoberyl : Optic character, birefriengence, spectrum Identifying Characteristics and information
ystals Spectral Data
May have a chrome spectrum Trade Names and Misnomers
Green Garnet
Tsavolite
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