Image: <bdi><a href="https://www.wikidata.org/wiki/Q56247090" class="extiw" title="d:Q56247090"><span title="mineral collector and dealer">Robert M. Lavinsky</span></a></bdi> (CC BY-SA 3.0)
hexagonaluncommonPhosphates
Pyromorphite
Pb5(PO4)3Cl
This specimen displays numerous barrel-shaped to prismatic, bright yellowish-green pyromorphite crystals forming a dense, druzy crust.
Pyromorphite Physical Properties
Mohs Hardness
3.5Crystal System
hexagonalLuster
resinousStreak Color
white to yellowish-whiteCleavage
imperfect on {1010} and {1120}Fracture
subconchoidalSpecific Gravity
6.5Colors
green, yellow, brown, orange, white, grayTransparency
translucentType Locality
Clausthal-Zellerfeld, Harz Mts, Lower Saxony, GermanyMineral Group
PhosphatesUses
minor lead ore, collectorAssociated Minerals
galena, cerussite, anglesite, mimetite, wulfenite, quartz, bariteRarity
uncommonGeological Context
Pyromorphite is a secondary mineral that forms in the oxidized zone of lead ore deposits, typically as an alteration product of primary lead minerals like galena.
