General Information |
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A variety or type of: | Sillimanite |
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Chemical Formula | Arthur Thomas, Gemstones (2009) |
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Physical Properties of Fibrolite |
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Mohs Hardness | 6 to 7Arthur Thomas, Gemstones (2009) |
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Specific Gravity | 3.14 to 3.25Arthur Thomas, Gemstones (2009) |
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Cleavage Quality | PerfectArthur Thomas, Gemstones (2009) |
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Fracture | UnevenArthur Thomas, Gemstones (2009) |
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Optical Properties of Fibrolite |
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Refractive Index | 1.658 to 1.678Arthur Thomas, Gemstones (2009) |
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Optical Character | Biaxial/+Arthur Thomas, Gemstones (2009) |
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Birefringence | StrongArthur Thomas, Gemstones (2009) |
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Pleochroism | DistinctArthur Thomas, Gemstones (2009) |
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Dispersion | 0.015Arthur Thomas, Gemstones (2009) |
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Colour |
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Colour (General) | Blue, brown, colourless, green, greyArthur Thomas, Gemstones (2009) |
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Transparency | Transparent,TranslucentArthur Thomas, Gemstones (2009) |
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Lustre | VitreousArthur Thomas, Gemstones (2009) |
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Crystallography of Fibrolite |
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Crystal System | OrthorhombicArthur Thomas, Gemstones (2009) |
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Habit | PrismaticArthur Thomas, Gemstones (2009) |
Further Information |
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Mineral information: | Fibrolite information at mindat.org |
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Significant Gem Localities |
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| Myanmar | |
| Ted Themelis (2008) Gems & mines of Mogok |
| Ted Themelis (2008) Gems & mines of Mogok |
- Pein-Pyit (Painpyit; Pyan Pyit)
| Ted Themelis (2008) Gems & mines of Mogok |
| Ted Themelis (2008) Gems & mines of Mogok |
| Ted Themelis (2008) Gems & mines of Mogok |
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