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Die Studie von Sclerocephalus haeuseri liefert wertvolle Einblicke in die Paläoökologie und evolutionäre Anpassungen von Amphibien und trägt zu unserem Wissen über antike Süßwasserökosysteme bei
Asien und Afrika
Origin: Green River Formation
Description: 228 to 220 million year old sandstone block from the Chinle Formation
valued as a semi-precious stone because of its purple color
Malachit 'Fingerform' | Kongo Mineralien Die Studie von Sclerocephalus haeuseriOriginally: Congo Size: H21cm W27cm D20cm Description: High quality malachite with a natural "finger shape" that brings out the different shades of green. The unusual size and shape make it an absolute collector's item. Additional information: Malachite is considered a semi precious stone and is a copper mineral. Due to its characteristic light green color and its occurrence in the weathering zone of almost all copper deposits, malachite serves as a
