Calcite

Calcite

Calcite

Quartz

Quartz

Quartz

Feldspath

Quartz

Quartz

Tourmaline

Gypse

Gypse

Quartz

Quartz

Quartz

Silex

Quartz

Gypse

Quartz

Quartz

Quartz

Gypse

Concrétion coralienne fossile

Silex

Orpiment