Saint-Priest-en-Jarez, Saint-Etienne, Loire, Rhône-Alpes, France

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Ref.: G. Demarcq, 1973, "Guides Géologiques Régionaux : Lyonnais, Vallée du Rhône" , p. 88, Masson.

Quarries on East side of Saint-Priest hill.
Silicified conglomerates, with flint layers and flint breccias, above volcanic tuffas.
Geyserites http://www2.ac-lyon.fr/enseigne/biologie/excurs/saint_et/saint_et4.html)

Mineral List:

'Chalcedony'

Mogánite

Opal

3 entries listed. 2 valid minerals.

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