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)