Deep grass green tiny, prismatic crystals lining the entire matrix of this specimen. Excellent specimen to obtain for the Pyromorphite collector.
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