femic [A mnemonic term derived from (fe) for iron and (m) for magnesium and applied to the group of standard normative minerals in which these elements are an essential component, including the pyroxene and olivine molecules and most of the normative accessory minerals (magmatite, ilmenite, hematite). The corresponding term for the ferromagnesian minerals actually present in a rock is “mafic”] ● femisch
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(2014). femic . In: Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-41714-6_60511
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