Lepidocrocite
Formula | γ–Fe3+O(OH) |
Origin | Sand pit near Augsburg (Germany) |
Description | shelly brown lepidocrocite |
Classification (Lapis) | Hydroxides |
Crystal System | orthorhombic |
Hardness | 5,0 |
Colour | ruby-red to reddish brown; light reddish |
Streak | dull orange |
Luminescence | none observed |
Luster | submetallic |
Transparency (Opacity) | opaque |
Cleavage | perfect |
Fracture | brittle |
Magnetism | negative |
Geological Setting | a common weathering product derived from numerous iron-bearing minerals in oxygenated environments |
Specific Gravity | 3,96 g/cm3 |