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De - Pt| English Dictionary: ullmannite | by the DICT Development Group |
| 1 result for ullmannite | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
|
Ullmannite \Ull"mann*ite\, n. [So named after J. C. Ullman, a German chemist.] (Min.) A brittle mineral of a steel-gray color and metallic luster, containing antimony, arsenic, sulphur, and nickel. | |
