Lepidocrocite
Chemical Formula	γ-FeO(OH)
Species	Oxides & Hydroxides
Crystal System	Orthorhombic
Mohs Scale	5
Specific Gravity	4
Color	Ruby-red to reddish brown; light reddish to red-orange in transmitted light; gray-white in reflected light
Streak	Dull orange
Luster	Sub-Metallic
Refractive Index	n = 1.940 n = 2.200 n = 2.510
Diaphaneity	Transparent
Cleavage	Perfect; less perfect; good.
Crystal Habit：Flattened scales aggregated into plumose groups and rosettes; massive, bladed to fibrous or micaceous