Das Kristall- und Mineralientresor

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Mahagoni-Obsidian: Was hat er mit dem Mars gemeinsam?

von/ durch Laura Konst

Mahagoni-Obsidian ist eine Varietät von vulkanischem Glas, die sich durch Hämatit- und Magnetiteinschlüsse auszeichnet, die ihr ihre charakteristische tiefrotbraune und schwarze Musterung verleihen. Das gleiche Eisenoxid, das die Oberfläche des Mars rot färbt, erzeugt die warmen Töne im Mahagoni-Obsidian, während Magnetit die kontrastierenden schwarzen Zonen bildet. Dieser Leitfaden beleuchtet die Eisenoxidchemie, die Entstehungsgeologie und die Position des Mahagoni-Obsidians innerhalb der breiteren Obsidianfamilie.

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Das Kristall- und Mineralientresor

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