| General Information |
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| Chemical Formula | Michael O’Donoghue, Gems, Sixth Edition (2006) |
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| Physical Properties of Faustite |
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| Mohs Hardness | 4.5Michael O’Donoghue, Gems, Sixth Edition (2006) |
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| Specific Gravity | 2.9Michael O’Donoghue, Gems, Sixth Edition (2006) |
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| Tenacity | BrittleAnthony et al, Handbook of mineralogy (2001) |
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| Fracture | ConchoidalAnthony et al, Handbook of mineralogy (2001) |
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| Optical Properties of Faustite |
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| Refractive Index | 1.612Michael O’Donoghue, Gems, Sixth Edition (2006) |
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| Optical Character | Biaxial/+Anthony et al, Handbook of mineralogy (2001) |
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| Birefringence | MediumAnthony et al, Handbook of mineralogy (2001) |
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| Colour |
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| Colour (General) | Apple-green and yellow-green, light bluish greenMichael O’Donoghue, Gems, Sixth Edition (2006) |
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| Transparency | Translucent,OpaqueAnthony et al, Handbook of mineralogy (2001) |
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| Lustre | Waxy,Dull (Earthy)Anthony et al, Handbook of mineralogy (2001) |
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| Crystallography of Faustite |
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| Crystal System | TriclinicMichael O’Donoghue, Gems, Sixth Edition (2006) |
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| Habit | Masses or nodulesMichael O’Donoghue, Gems, Sixth Edition (2006) |
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| Geological Environment |
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| Where found: | Occurs as masses or nodules in argillized shales associated with copper mineralization.Michael O’Donoghue, Gems, Sixth Edition (2006) |
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| Further Information |
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| Mineral information: | Faustite information at mindat.org |
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