Min. [From the name of Prof. J. C. Ullmann + -ITE1; in sense b named by J. Fröbel in 1850.] (See quots.)
† a. 1839. Penny Cycl., XIV. 382/1. Phosphate of Manganese and Iron: Ullmannite … Occurs at Limoges in France.
b. 1868. Watts, Dict. Chem., V. 936. Ullmanite, antimonial or antimonio-arsenical nickel-glance.
1875. Ure’s Dict. Arts (ed. 7), III. 1050. Ullmannite, an antimonio-sulphide of nickel, occasionally containing arsenic. It occurs at Freusberg, in Nassau.
