erlan definition

  • noun:
    • In petrography, a fine-grained metamorphic rock composed mainly of augite, with feldspar, quartz, as well as other minerals. Also called (in German) erlanfels.
    • In petrography, a fine-grained metamorphic stone composed chiefly of augite, with feldspar, quartz, alongside minerals. Also called (in German) erlanfels.
    • In petrography, a fine-grained metamorphic stone composed chiefly of augite, with a few feldspar, quartz, and other nutrients. Also called (in German) erlanfels.
    • In petrography, a fine-grained metamorphic stone composed chiefly of augite, with some feldspar, quartz, alongside nutrients. Also referred to as (in German) erlanfels.

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