List of Gemstones | Rare Minerals | Gem stones | Gems » Diopside 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 Chrome Diopside http://www.all-gemstones.com/chrome-diopside http://www.all-gemstones.com/chrome-diopside#comments Tue, 28 Jul 2009 11:03:32 +0000 admin http://www.all-gemstones.com/?p=626   Refractive Index : 1.701- 1.675 ( +0.029 – 0.010 ) Optical Characteristic : DR Biaxial positive, AGG Specific Gravity : 3.29 ( +0.11 – 0.07 ) Formula : CaMgSI2O6 Crystal System : Monoclinic Variety/Species : Diopside Species/Group : Pyroxene Group Birefringence : 0.024 to 0 .030 Dispersion : N/A Hardness : 5.5 to 6 Toughness : Poor Ultrasonic : Risky Steam : Never UV Long : Weak UV Short : Inert Pleochroism : 2 or 3 Colors Strength : Weak to strong
Pleochroism Colors : Yellow/green Heat : Fusible Acids : Avoid hydrofluoric acid Light : Stable Polish Luster : Vitreous to resinous Fracture : Conchoidal to uneven Fracture Luster : Vitreous to resinous Clarity Type : N/A Tones : N/A Saturations : N/A Cause of Color : Chromium Enhancements : None Cleavage : Perfect in 2 directions Color Range : Green, medium dark green, vivid green Transparency : Transparent Phenomena : None
Separations : Chrome Diopside from-
Peridot : Rl, birefringence, optic sign (possibly), spectrum, phenomena (possibly)Dioptase : color, Rl, birefringence, optic character, spectrum, phenomena (possibly)

Zoisite: birefringence, color, pleochroism, phenomena (possibly), spectrum (possibly) Identifying Characteristics and information
Part of the Diopside/Hedenbergite series.
May show only 2 colors of pleochroism. Spectral Data
Lines at 5080, 5050.4900. Fuzzy bands at 6350,6550,6700. Doublet at 6900. Trade Names and Misnomers
Chrome Diopside   ]]> http://www.all-gemstones.com/chrome-diopside/feed 0 Diopside http://www.all-gemstones.com/diopside http://www.all-gemstones.com/diopside#comments Tue, 28 Jul 2009 10:51:17 +0000 admin http://www.all-gemstones.com/?p=758   Refractive Index : 1.701 – 1.675 (+0.029 – 0.010) spot reading is usually 1.68 Optical Characteristic : DR Biaxial positive, AGG Specific Gravity : 3.29 (+0.11 – 0.07) Formula : CaMgSi2O6 Crystal System : Monoclinic Variety/Species : Diopside Species/Group : Pyroxene Group Birefringence : 0.024 to 0.030 Dispersion : N/A Hardness : 5.5 to 6 Toughness : Poor Ultrasonic : Risky Steam : Never UV Long : green – green UV Short : Inert Pleochroism : 2 Colors Strength : Weak to strong

Pleochroism Colors : Weak to strong, none, yellow/green. Heat : Fusible Acids : Avoid hydrofluoric acid Light : Stable Polish Luster : Vitreous to resinous Fracture : Conchoidal to uneven Fracture Luster : Vitreous to resinous Clarity Type : N/A Tones : N/A Saturations : N/A Cause of Color : Green-chromium; green/brown-iron Enhancements : None Cleavage : Perfect in 2 directions Color Range : Bluish green, green, yellowish green, brown, black Blue, purple Purplish, bluish, greenish, brownish Transparency : Transparent to Opaque Phenomena : Chatoyancy, aventurescence, Asterism most often 4 ray star but may be 6 rays too
Separations : Diopside from-Peridot : RI, birefringence, optic sign(possibly), spectrum, phenomena (possibly)        Dioptase: Color, birefringence, optic character, spectrum, phenomena (possibly)

Zoiste: Birefringence, color, pleochroism, phenomena (possibly), spectrum (possibly)

Black star sapphire:4 rays(possibly), RI, SG Identifying Characteristics and information
Star usually has 4 rays instead of 6. Pink phosphorescence (rarely)
Malacolite is pale green. Violane is purple or blue and is very rare.
Part of the Diopside/Hedemnergite series. Spectral Data
Malacolite (pale green diopside): lines at 5050,4930 and 4460 Trade Names and Misnomers
Alalite
Allalite
Augite
Baikalite
Cat’s Eye Diopside (S)
Chrome Diopside (S)
Dekalbite
Dillage
Diopside
Hedenbergite(S)
Jeffersonite(S)
Malacolite
Salaite
Schefferite(S)
Star Diopside(S)
Tashmarine
Violane   ]]> http://www.all-gemstones.com/diopside/feed 0