Abstract
In the late 1970’s, when the new northern Cabo Mondego quarry began to mine, a large number of geodes and nodules containing prismatic crystals and white masses, occasionally with hues of light blue, of celestine (strontium sulphate) appeared on the blasting fronts. This occurrence of celestine has been known since the 19th century, being considered exceptional in the national context and thus constituting the most remarkable known occurrence of this mineral in Portugal.
Celestine and paragenesis developed, by diagenetic processes, inside ammonite fossils. Samples were used in pioneering works about this mineral species that
are part of classical Mineralogy and Crystallography texts from the 19th century and first quarter of the 20th century.
Celestine and paragenesis developed, by diagenetic processes, inside ammonite fossils. Samples were used in pioneering works about this mineral species that
are part of classical Mineralogy and Crystallography texts from the 19th century and first quarter of the 20th century.
Translated title of the contribution | On the importance of celestite occurrence in Cabo Mondego (Jurassic, West Portugal): uniqueness, scientific importance and material implications |
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Original language | Portuguese |
Title of host publication | Santos Rocha |
Subtitle of host publication | Arqueologia e territórios da Figueira da Foz |
Editors | Ana Margarida Ferreira, Raquel Vilaça |
Place of Publication | Coimbra |
Publisher | Município da Figueira da Foz/ Instituto de Arqueologia - Universidade de Coimbra |
Pages | 256-267 |
Number of pages | 11 |
ISBN (Print) | 978-989-8903-48-8 |
Publication status | Published - 2021 |
Keywords
- Celestite
- Mineralogia
- Cabo Mondego