| General Information |
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| Other Names/Trade Names: | |
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| Chemical Formula | Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) |
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| Physical Properties of Gadolinium Gallium Garnet |
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| Mohs Hardness | 6.5Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) |
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| Specific Gravity | 7.05Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) |
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| Optical Properties of Gadolinium Gallium Garnet |
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| Refractive Index | 1.97 to 2.03Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) |
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| Optical Character | IsotropicUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) |
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| Colour |
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| Colour (General) | Colourless, brown, gren, yellow, lilac, blue, red, pinkUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) |
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| Transparency | TransparentUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) |
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| Fluorescence & other light emissions |
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| Fluorescence (Short Wave UV) | Common weak brownish to pinkish orangeHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
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| Fluorescence (Long-Wave UV) | Inert to brownish-yellowHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
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| Crystallography of Gadolinium Gallium Garnet |
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| Crystal System | IsometricUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) |
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| Further Information |
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| Mineral information: | Gadolinium Gallium Garnet information at mindat.org |
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