Brownish tan barrel-shaped crystals to 6mm. Excellent display piece.
Pyromorphite
Formula
Pb5(PO4)3Cl
Crystal System
Hexagonal
Crystal Habit
Crystals short to long prismatic, acicular, often hoppered terminations, rarely tabular to equant; radiating to branching groups, tapering to a point. Commonly rounded, globular, reniform, botryoidal.
Cleavage
On {1011}, interrupted
Luster
Resinous to subadamantine
Color
Dark grass-green, green, yellow, yellow-orange, reddish orange, yellow-brown, brown, tan, grayish, may be colorless
Streak
White
Geological Setting
A secondary mineral in the oxidized zone of lead deposits
