Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A variety of pyroxene of olive-green color passing into brown. It contains zinc.

from the GNU version of the Collaborative International Dictionary of English

  • n. A variety of pyroxene of olive-green color passing into brown. It contains zinc.

from The Century Dictionary and Cyclopedia

  • n. A variety of pyroxene occurring in large crystals, often with uneven faces and rounded edges, and having a dark olive-green color passing into brown.

Etymologies

Named after Thomas Jefferson (Wiktionary)

Examples

  • In the first case (31) are varieties of felspar; in the second case (32) are micaceous and other mineral substances; in the third case (33) are basaltic hornblende, tremolite, &c.; in the fourth case (34) are varieties of asbestus, which defies the action of fire; jeffersonite; jenite from the Elba,

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