Cerusita
Cerusita is a mineral with formula PbCO₃, in the Carbonatos group. This specimen comes from Filón Sur, Tharsis, Huelva, Andalucía, España and joined the Terrium collection in 2018.
Description
Large piece mainly of earthy limonite, with a geode lined with cerussite crystals of short-prismatic habit, well defined, translucent, and with vitreous lustre.
History of this specimen
Extracted in 2018 by Diego Navarro after long hours of searching in a Filón Sur already much degraded. I note it has its own FMF record, which reinforces its traceability: https://www.foro-minerales.com/forum/download.php?id=12077
About Cerusita
Cerussite is a lead carbonate. It commonly forms prismatic, tabular or acicular crystals. It is usually translucent, with vitreous lustre and colours ranging from colourless to grey. It is relatively frequent in the oxidised zones of lead deposits.
About the locality
The Filón Sur at Tharsis, noted for its historic mining, produced excellent cerussites in cavities rich in iron oxides. At present, extracting aesthetic specimens is difficult owing to the razed state of the deposit.
Technical data
- Catalogue No.
- 0489
- Internal reference
- T0144
- Composition
- PbCO₃
- Name
- Cerusita
- Group
- Carbonatos
- Category
- Cavella
- Matrix
- Matriz limonítica
- Mine
- Filón Sur
- District / Municipality
- Tharsis
- Province
- Huelva
- Region
- Andalucía
- Country
- España
- Size (cm)
- 8.5 x 6.5 x 3.5
- Weight
- 230 g
- Acquired
- 2018
- Ex-collection
- Diego Navarro
- Etymology
- From Latin "cerussa" ("white lead"), in reference to the historical use of the mineral as a pigment.
- Quality
- Buena
- Value trend
- Estable
Related specimens
- Abellaíta — España
- Abernathyita — España
- Abernathyita — España
- Abernathyita — España
- Aerenita — España
- Aerinita (fibrosa) — España
- Analcima — España
- Analcima — España