Crocoite
Chemical Formula	Lead Chromate PbCrO4
Species	Chromates
Crystal System	Monoclinic
Mohs Scale	2-3
Specific Gravity	5.9-6.1
Color	Orange, red, yellow
Streak	Yellowish orange
Luster	Adamantine
Refractive Index	n = 2.290(2) n = 2.360(2) n = 2.660(2)
Diaphaneity	Translucent
Cleavage	Poor/IndistinctDistinct on , indistinct on and .
Fracture	Conchoidal
Crystal Habit：Coarsely crystalline to acicular
Geological Setting：Uncommon secondary mineral in lead deposits associated with chromium bearing rocks.