| 释义 |
irinite Min.|ˈɪrɪnaɪt|
[ad. Russ. irinit (Borodin & Kazakova 1954, in Doklady Akad. Nauk S.S.S.R. XCVII. 725), f. the name of Irin-a Dmitrievna Borneman-Starynkevich, Russian geochemist: see -ite1.]
An oxide-hydroxide of sodium, cerium, thorium, titanium, and niobium occurring as red-brown crystals in the Khibiny Massif, U.S.S.R., and belonging to the perovskite group of minerals.
1955Mineral. Abstr. XII. 462 Irinite occurs as combination of cube and octahedron from 0·5 to 1 cm. in size... Formula ABX3, namely (Na, Ce, Th)1 - x(Ti, Nb)(O3 - x, (OH)x) with deficiency of A cations. 1962W. A. Deer et al. Rock-forming Min. V. 51 Irinite, described as a new mineral of the perovskite group..has a high thorium and rare earth content. |