miersite Min.
(ˈmaɪəzaɪt)
[f. the name of Sir Henry Alexander Miers (1858–1942), English mineralogist + -ite1.]
An iodide of silver and copper, (Ag, Cu)I (with the ratio of silver to copper approximately 4:1), which is found as yellow isometric crystals at Broken Hill, New South Wales, Australia.
| 1898 L. J. Spencer in Nature 14 Apr. 574/2 The new mineral has been named in honour of Mr. H. A. Miers, F.R.S., Professor of Mineralogy at Oxford, who first correctly determined the crystalline form of marshite, a mineral so closely resembling miersite in appearance that the two species are only distinguished by chemical tests. 1901 [see isomorphously adv.]. 1922 Mineral. Abstr. I. 305 Silver iodide and copper iodide when fused together show..specks of birefringent iodyrite in a base of isotropic miersite. 1951 C. Palache et al. Dana's Syst. Min. (ed. 7) II. 20 Both miersite and iodyrite are obtained by metathical [read metathetical] reaction in water solution at ordinary temperature. |