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Definition of Ullmannite

1. n. A brittle mineral of a steel-gray color and metallic luster, containing antimony, arsenic, sulphur, and nickel.

Definition of Ullmannite

1. Noun. (minerology) A nickel antimony sulphide mineral. ¹

¹ Source: wiktionary.com

Medical Definition of Ullmannite

1. A brittle mineral of a steel-gray colour and metallic luster, containing antimony, arsenic, sulphur, and nickel. Origin: So named after J. C. Ullman, a German chemist. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Ullmannite

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