dufrenoysite Min.
(djuːfrɪˈnɔɪzaɪt)
[Named 1845 after M. Dufrénoy: see prec.]
An arsenical sulphuret of lead, occurring in highly modified prisms, of grey colour and metallic lustre.
| 1848 Amer. Jrnl. Sc. Ser. ii. V. 268 Dufrenoysite is an arsenical sulphuret of lead. 1868 Dana Min. 92. |