| General Information |
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| A variety or type of: | Andalusite |
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| Chemical Formula | Gemdat.org, Management Team (2012) |
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| Physical Properties of Viridine |
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| Mohs Hardness | 7 to 7.5Arthur Thomas, Gemstones (2009) |
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| Specific Gravity | 3.05 to 3.21Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
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| Cleavage Quality | DistinctUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) |
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| Fracture | UnevenArthur Thomas, Gemstones (2009) |
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| Optical Properties of Viridine |
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| Refractive Index | 1.629 to 1.660Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) |
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| Optical Character | Biaxial/-Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
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| Birefringence | 0.007 to 0.013Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
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| Dispersion | 0.016Arthur Thomas, Gemstones (2009) |
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| Colour |
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| Colour (General) | Grass greenGemdat.org, Management Team (2012) |
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| Transparency | Transparent,Translucent,OpaqueUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) |
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| Lustre | VitreousGemdat.org, Management Team (2012) |
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| Crystallography of Viridine |
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| Crystal System | OrthorhombicHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) |
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| Habit | Prismatic habit with vertically striated prisms which are nearly square in section and capped with pyramidsMichael O’Donoghue, Gems, Sixth edition (2006) |
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| Further Information |
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| Mineral information: | Viridine information at mindat.org |
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