General Information | ||||||||||
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A variety or type of: | Diopside | |||||||||
Other Names/Trade Names: | ||||||||||
Chemical Formula |
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Physical Properties of Chrome-Diopside | ||||||||||
Mohs Hardness | 5 to 6Blue Chart Gem Identification (2010) , | |||||||||
Specific Gravity | 3.22 to 3.40Blue Chart Gem Identification (2010) , | |||||||||
Cleavage Quality | DistinctGemmological Tables (2004) , | |||||||||
Fracture | ConchoidalGemstones (2009) , | |||||||||
Optical Properties of Chrome-Diopside | ||||||||||
Refractive Index | 1.668 to 1.703Blue Chart Gem Identification (2010) , More from other references | |||||||||
Optical Character | Biaxial/+Blue Chart Gem Identification (2010) , | |||||||||
Birefringence | 0.024 to 0.030Blue Chart Gem Identification (2010) , More from other references | |||||||||
Colour | ||||||||||
Colour (General) | Emerald greenBlue Chart Gem Identification (2010) , | |||||||||
Colour (Chelsea Filter) | ReddishBlue Chart Gem Identification (2010) , | |||||||||
Causes of Colour | Green, Cr3+ in octahedral coordinationPragmatic Spectroscopy For Gemologists (2011) , | |||||||||
Transparency | TransparentGems, Sixth Edition (2006) , | |||||||||
Lustre | VitreousGemstones (2009) , | |||||||||
Crystallography of Chrome-Diopside | ||||||||||
Crystal System | MonoclinicBlue Chart Gem Identification (2010) , | |||||||||
Habit | Prismatic, massiveGemstones (2009) , | |||||||||
Geological Environment | ||||||||||
Where found: | Kimberlites and apoultramafic metasomatites Xenoliths in alkali basalts.Geology of gems (2003) , | |||||||||
Further Information | ||||||||||
Mineral information: | Chrome-Diopside information at mindat.org | |||||||||
Significant Gem Localities | ||||||||||
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