Petrurgy

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Obsidian (volcanic rock glass from Oregon, USA)

For Petrurgie include processes of melting , formation of phases (z. B. crystallization ) as well as the shaping of sedimentary and igneous rocks and rock mixture.

Individual evidence

  1. ↑ Hans-Dieter Jakubke, Ruth Karcher (coordinators): Lexicon of Chemistry in three volumes, Spektrum Verlag, Heidelberg, Volume 3, ISBN 3-8274-0381-2 , p. 8.