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Melanocratic nephelinolite

A rock subtype
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Discuss Melanocratic nephelinolite
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Anephelinolite consisting of 10% to 30% nepheline with pyroxene. Previously called melteigite.


Foidolite
  • Exotic crystalline igneous rock
    • QAPF_P_15.png

    Foidolite is in section 15 of theQAPF diagram.

    Sub-divisions of Melanocratic nephelinolite
    Non-essential minerals - these minerals are common, sometimes major components, but are not always present:

    Amphibole >HornblendeA commonly used informal name for dark green to blackamphiboles, largely in the Hornblende Root Name ...
    Mica >BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2

    Synonyms of Melanocratic nephelinolite

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    • References for Melanocratic nephelinoliteHudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
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