▲ Bourse minéraux et fossiles de Sainte Marie aux Mines (Alsace) - 24>28 juin 2026 ▲

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Bourse minéraux Sainte Marie aux Mines 2026, avec fossiles et gemmes.

Calcite (?)

https://www.geoforum.fr/gallery/image/1749-calcite/

Deux gros cristaux pluricentimétriques de calcite (je pense) trouvés dans une bulle de basalte.
Coiron, Ardèche.

From the album:

· 44 images

https://www.geoforum.fr/gallery/image/1749-calcite/

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