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De - Pt| English Dictionary: jeffersonite | by the DICT Development Group |
| 1 result for jeffersonite | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
|
Jeffersonite \Jef"fer*son*ite\, n. [Named after Thomas Jefferson.] (Min.) A variety of pyroxene of olive-green color passing into brown. It contains zinc. | |
