Luster is resinous to adamantine. Crystals are rarely transparent, but usually translucent. A classic specimen of Pyromorphite shows its arborescent habit as described above. Also granular, reniform, encrusting and massive. Cleavage is absent.
Fracture is uneven.
Hardness is 3.5 - 4. Streak is off white. Associated Minerals are cerussite , limonite , galena and secondary lead deposit minerals. Best Field Indicators are crystal habit, color, lack of transparency and density.