#001  BELGIAN PIERRE BLEU

The Pierre bleue is a calcareous rock of sedimentary origin derived from the aggregation of fossils. Corals and shells stand out clearly against the background that varies from gray to black. The shades from gray-blue to blue-black are given to the organic matter present in the calcite crystals.

Quarry: From the Soignes region to the Channel | Belgium

Formation period: Carboniferous | 345 MA

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