| Mineral | Pharmacosiderite |
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| Formula | KFe3+4(AsO4)3(OH)4 ยท 6-7H2O |
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| Crystal Form | Isometric/Hextetrahedral [4 3m] |
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| Cleavage | Imperfect to Good on {001} |
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| Color | Green, Pale green, Emerald-green, Brown, Honey-yellow to Yellow-brown, Brownish red, Red |
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| Density | 2.8 – 2.9 g/cm3 |
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| Diaphaneity | Transparent, Translucent |
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| Fracture | Irregular/Uneven |
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| Hardness | 2.5 |
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| Lustre | Adamantine, Sub-adamantine, Sub-vitreous, Greasy |
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| Streak | White |
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| Type Loc. | Tincroft Mine, Carn Brea and Tincroft United Mine, Carn Brea, Camborne - Redruth - St Day Dist., Cornwall, England, UK |
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| Dana 8 Class | 42.8.1a.1 |
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| Strunz Class | 7/D.47-20 |
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| Mindat | mindat.org |
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| WebMineral | WebMineral |
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| ID | 402 |
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