alum schist definition

  • others:
    • many different shale or clay record, containing iron pyrites, the decomposition which results in the formation of alum, which frequently effloresces on the rock.
    • A variety of shale or clay record, containing iron pyrites, the decomposition of which causes the forming of alum, which frequently effloresces regarding rock.

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  • Definition for "alum schist"
    • many different shale or clay record, containing iron…
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  • Equivalent for "alum schist"
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