Formulaγ–Fe3+O(OH)
OriginSand pit near Augsburg (Germany) 
Descriptionshelly brown lepidocrocite
Classification (Lapis) Hydroxides
Crystal Systemorthorhombic
Hardness5,0
Colourruby-red to reddish brown; light reddish
Streakdull orange
Luminescencenone observed 
Lustersubmetallic
Transparency (Opacity)opaque
Cleavageperfect
Fracturebrittle
Magnetismnegative
Geological Settinga common weathering product derived from numerous iron-bearing minerals in oxygenated environments
Specific Gravity3,96 g/cm3