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from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of a melanocratic series of igneous rocks of varying composition, the characteristic minerals being purple titanaugite, nepheline, and magnetite or titanoferrite.

from The Century Dictionary and Cyclopedia

  • n. In petrography, a group of phaneric igneous rocks of somewhat variable composition associated with nephelite syenite.


Jacupiranga +‎ -ite (Wiktionary)


Sorry, no example sentences found.


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