polyargyrite Min.
(pɒlɪˈɑːdʒɪraɪt)
[ad. Ger. polyargyrit (F. v. Sandberger 1869), f. Gr. πολυ-, poly- + ἄργυρος silver: see -ite1.]
Sulphantimonide of silver containing a very high percentage of the latter metal.
| 1872 Dana Min. App. i. 12 Polyargyrite... Lustre metallic Color iron-black to dark blackish-gray... The mineral is between argentite and pyrargyrite. 1893 Chapman Blowpipe Pract. 115 Polyargyrite is closely related [to polybasite]. |