Description: Calcite Loverval, Gerpinnes, Hainaut Province, Belgium 30 x 20 cm aprox. The specimen to the left is from: Loverval, Gerpinnes, Hainaut Province, Belgium while the sample to the right is from : Landelies, Montigny-le-Tilleul, Hainaut Province, Belgium (18 x 18 cm aprox.)

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