| General Information |
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| A variety or type of: | Andradite, which is a variety of Garnet Group |
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| Chemical Formula | Arthur Thomas, Gemstones (2009) |
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| Physical Properties of Topazolite |
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| Mohs Hardness | 6.5 to 7Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
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| Specific Gravity | 3.70 to 4.10Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
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| Cleavage Quality | NoneArthur Thomas, Gemstones (2009) |
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| Fracture | ConchoidalArthur Thomas, Gemstones (2009) |
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| Optical Properties of Topazolite |
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| Refractive Index | 1.855 to 1.895Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
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| Optical Character | IsotropicHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
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| Dispersion | 0.057Arthur Thomas, Gemstones (2009) |
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| Colour |
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| Colour (General) | Yellow, yellow-brownHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
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| Causes of Colour | Yellow, various charge transfer processes and dispersed ion absorption involving Fe and Ti.W. William Hanneman, Pragmatic Spectroscopy For Gemologists (2011) |
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| Transparency | Transparent,TranslucentArthur Thomas, Gemstones (2009) |
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| Lustre | Subadamantine,VitreousArthur Thomas, Gemstones (2009) |
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| Crystallography of Topazolite |
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| Crystal System | IsometricHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
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| Habit | Dodecahedral, trapezohedralArthur Thomas, Gemstones (2009) |
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| Further Information |
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| Mineral information: | Topazolite information at mindat.org |
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