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mounted on a handmade custom stand that highlights the spiral shape so typical of ammonites
it is more similar to micas
Zusätzliche Informationen: Obsidian ist ein natürlich vorkommendes vulkanisches Gesteinsglas
which then solidified and condensed into chondritic masses
Versteinerte Holzscheibe | Arizona, USA Minerals mounted on a handmade customOrigin: Arizona, USA Age: Triassic, 220 million years Size: H61cm W74cm D4cm Weight: 30. 0 kg Description: Dating from the Triassic period (approximately 220 million years old), the Araucarioxylon arizonicum has been cut in cross section and polished to reveal the rich colors that have made this site so famous, while carefully preserving the texture of the edges. Additional Information: Petrified wood is fossilized wood in which all organic matter has
