Pyromorphite
Chemical Formula	Pb5(PO4)3Cl
Species	Phosphates
Crystal System	Hexagonal
Mohs Scale	3-4
Specific Gravity	7.04-7.14
Color	Dark grass-green, green, yellow, yellow-orange, reddish orange, yellow-brown, brown, tan, grayish, may be colorless
Streak	White
Luster	Sub-Adamantine, Resinous
Refractive Index	n = 2.058 n = 2.048
Diaphaneity	Transparent, Translucent
Cleavage	Poor/IndistinctIn traces on .
Fracture	Irregular/Uneven, Sub-Conchoidal
Crystal Habit：Prismatic to acicular crysals, globular to reniform
Geological Setting：A secondary mineral found in the oxidised zones of lead ore deposits.