description Pyromorphite Overview
Pyromorphite is a lead chlorophosphate mineral with the chemical formula Pb5(PO4)3Cl. It commonly forms barrel-shaped or prismatic hexagonal crystals in the oxidized zones of lead-ore deposits, where it may occur in green, yellow, brown, or related colors. Because of its crystal form and color range, pyromorphite is collected as a mineral specimen, while its lead content is an important handling consideration.
help Pyromorphite FAQ
What is the chemical formula of pyromorphite?
Pyromorphite has the chemical formula Pb5(PO4)3Cl. The formula shows that it is a lead chlorophosphate mineral and should be handled with care because of its lead content.
What shape do pyromorphite crystals usually have?
Pyromorphite commonly forms barrel-shaped or prismatic hexagonal crystals. The six-sided crystal habit is a useful visual clue when identifying attractive specimens.
Where does pyromorphite form?
It forms in the oxidized zones of lead-ore deposits. These are near-surface parts of mineral deposits where oxygen-rich weathering changes primary lead minerals.
What colors can pyromorphite be?
Common colors include green, yellow, and brown, with related shades also occurring. Color alone is not enough for identification because several lead minerals can look similar.
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