Piromorfita
Piromorfita is a mineral with formula Pb₅(PO₄)₃Cl, in the Fosfatos group. This specimen comes from Mina Crabulazzu, Fluminimaggiore, Iglesiente, Cerdeña, Italia and joined the Terrium collection in 2025.
Description
Apple-green microprismatic crystals line an elongate cavity in ochre matrix. Vitreous-resinous lustre and dense granulation with well-defined hexagonal points and botryoidal zones.
About Piromorfita
Pyromorphite from the lead oxidation zone with dense growth and complete coverage; bright colour and a granular texture typical of Sardinian production.
About the locality
Classic locality in south-west Sardinia, with secondary lead mineralisation; pyromorphites formed on goethite and limonite in oxidation cavities.
Technical data
- Catalogue No.
- 0207
- Composition
- Pb₅(PO₄)₃Cl
- Name
- Piromorfita
- Group
- Fosfatos
- Category
- Cupidium
- Matrix
- Limonita
- Mine
- Mina Crabulazzu
- District / Municipality
- Fluminimaggiore
- Province
- Iglesiente
- Region
- Cerdeña
- Country
- Italia
- Size (cm)
- 5.5 x 4.5
- Weight
- 83.5 g
- Acquired
- 2025
- Etymology
- From the Greek "pyr" (fire) and "morphé" (form), for the changes in appearance when heated.
- Quality
- Buena
- Value trend
- Estable