| General Information |
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| Chemical Formula | | ◻(LiAl | | )Al | | (Si | | O | | )(BO | | ) | | (OH) | | (OH) |
Gemdat.org, Management Team (2012) |
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| Physical Properties of Rossmanite |
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| Mohs Hardness | 7Gemdat.org, Management Team (2012) |
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| Specific Gravity | 3Webmineral.com, Mineralogy Database (2012) |
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| Tenacity | BrittleWebmineral.com, Mineralogy Database (2012) |
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| Cleavage Quality | NoneWebmineral.com, Mineralogy Database (2012) |
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| Optical Properties of Rossmanite |
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| Refractive Index | 1.624 to 1.645Gemdat.org, Management Team (2012) |
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| Optical Character | Uniaxial/-Gemdat.org, Management Team (2012) |
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| Birefringence | 0.021Gemdat.org, Management Team (2012) |
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| Colour |
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| Colour (General) | Pale-pink to colorlessGemdat.org, Management Team (2012) |
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| Transparency | TransparentWebmineral.com, Mineralogy Database (2012) |
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| Lustre | VitreousGemdat.org, Management Team (2012) |
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| Crystallography of Rossmanite |
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| Crystal System | TrigonalGemdat.org, Management Team (2012) |
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| Further Information |
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| Mineral information: | Rossmanite information at mindat.org |
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