General Information |
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Chemical Formula | Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references |
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Physical Properties of Chondrodite |
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Mohs Hardness | 6 to 6.5Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references |
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Specific Gravity | 3.10 to 3.20Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references |
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Cleavage Quality | DistinctUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references |
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Fracture | Uneven,Sub-ConchoidalArthur Thomas, Gemstones (2009) |
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Optical Properties of Chondrodite |
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Refractive Index | 1.589 to 1.670Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references |
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Optical Character | Biaxial/+Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references |
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Birefringence | 0.025 to 0.036Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references |
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Pleochroism | Orange-brown to yellow-brownMichael O’Donoghue, Gems, Sixth Edition (2006) More from other references |
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Dispersion | NilArthur Thomas, Gemstones (2009) |
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Colour |
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Colour (General) | Yellow, red, brownishUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references |
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Transparency | Transparent,Translucent,OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references |
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Lustre | Vitreous,ResinousArthur Thomas, Gemstones (2009) |
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Fluorescence & other light emissions |
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Fluorescence (Short Wave UV) | Inert to moderate yellowHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
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Fluorescence (Long-Wave UV) | Inert to weak orangeHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references |
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Crystallography of Chondrodite |
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Crystal System | MonoclinicHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references |
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Habit | Characteristically flattened crystalsMichael O’Donoghue, Gems, Sixth Edition (2006) More from other references |
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Geological Environment |
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Where found: | In contact metamorphic zones, in limestones and dolostones, associated with felsic to alkalic plutonic rocks, especially with Fe-B-F metasomatism; in a carbonatite.Anthony et al, Handbook of mineralogy (2001) More from other references |
Further Information |
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Mineral information: | Chondrodite information at mindat.org |
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Significant Gem Localities |
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| Myanmar | |
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| Ted Themelis (2008) Gems & mines of Mogok | | USA | |
| Gems, Sixth Edition, Michael O’Donoghue, 2006, p. 399 |
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