| 释义 |
marrite Min.|ˈmɑːraɪt|
[f. the name of John Edward Marr (1857–1933), British geologist + -ite1.]
A sulphide and arsenide of lead and silver, PbAgAsS3, which is found as grey monoclinic crystals in dolomite at Lengenbach, Switzerland.
1904[see lengenbachite]. 1905R. H. Solly in Mineral. Mag. XIV. 76 The colour of marrite is lead-grey to steel-grey, but the crystals are usually tarnished with iridescent colours... The name marrite is proposed in honour of Dr. John Edward Marr, F.R.S., of Cambridge. 1967Zeitschr. für Kristallogr. CXXV. 459 Marrite, a rare sulfosalt from the Binnatal, Switzerland, has been shown to have composition PbAgAsS3. The phase is monoclinic, space group P21/a. |