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Pyromorphite

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 features vibrant green to yellowish-green pyromorphite crystals, exhibiting both botryoidal and barrel-shaped prismatic habits, often forming attractive aggregates.

Pyromorphite Physical Properties

Mohs Hardness

3.5

Crystal System

hexagonal

Luster

resinous

Streak Color

white to yellowish-white

Cleavage

poor on {1010}

Fracture

conchoidal

Specific Gravity

6.5

Colors

green, yellow-green, yellow, brown, orange, white

Transparency

translucent

Type Locality

Daoping Mine (Tangping Mine), Gongcheng City, Gongcheng County, Guilin Prefecture, Guangxi Zhuang Autonomous Region, China

Mineral Group

Phosphates

Uses

collector, minor lead ore

Associated Minerals

cerussite, galena, anglesite, limonite

Rarity

uncommon

Geological 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.