English dictionary
ullmannite
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
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A brittle mineral of a steel-gray color and metallic luster, containing antimony, arsenic, sulphur, and nickel.
Source: webster1913
English dictionary
Definitions, examples, synonyms and antonyms from WordNet 3.0.
A brittle mineral of a steel-gray color and metallic luster, containing antimony, arsenic, sulphur, and nickel.
Source: webster1913