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07619 - Beautiful Deep Blue Azurite Crystals on Carbonate Matrix - Kerrouchen (Morocco) KemKem_Sawfish Impressive specimen of the brittlestar

USD168.50 USD213.50
SKU 41620087757
4.0

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Ships within 48 hours · Estimated delivery Sep 21 - Sep 26

Description

Impressive specimen of the brittlestar genus Ophiura

Peeters & D

Prognathodon Curii

Specimen of extreme quality

07619 - Beautiful Deep Blue Azurite Crystals on Carbonate Matrix - Kerrouchen (Morocco) KemKem_Sawfish Impressive specimen of the brittlestarAzurite is one of the two basic copper carbonate minerals, the other being bright green malachite. Simple copper carbonate (CuCO3) is not known to exist in nature. Azurite has the formula Cu3(CO3)2(OH)2, with the copper cations linked to two different anions, carbonate and hydroxide. Small crystals of azurite can be produced by rapidly stirring a few drops of copper sulfate solution into a saturated solution of sodium carbonate and allowing the

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