Calcite in a Sea Urchin Fossil | #Geology #GeologyPage…

Calcite in a Sea Urchin Fossil | #Geology #GeologyPage…

Calcite in a Sea Urchin Fossil | #Geology #GeologyPage #Fossil

Locality: Calais, Nord Pas de Calais, France

Size: 8.3 × 6.5 × 3.6 cm

This is a very interesting and rare specimen for calcite collectors: A shell of a not formally identified echinoderm (but definitely a sea urchin) hosts parallel grown clear colourless / greyish calcite crystals aligned on the biologically given structure of the fossil.

Photo Copyright © Montan Park

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