| 释义 |
ˈroentgenite Min.
Also röntgenite.
[f. Roentgen, roentgen + -ite1.]
A rhombohedral fluorocarbonate of cerium, lanthanum, and calcium, Ca2(Ce,La)3(CO3)5F3, found as small yellow or brown crystals in association with other rare-earth minerals at Narsarsuk, Greenland.
1953G. Donnay in Amer. Mineralogist XXXVIII. 868 (heading) Roentgenite, 3CeFCO3.2CaCO3, a new mineral from Greenland. 1966Z. Lerman tr. K. A. Vlasow's Geochem. & Mineral. of Rare Elements II. viii. 272 Röntgenite Ce3Ca2(CO3)5F3. Identity established by Donnay in 1953 during X-ray analysis of rare-earth fluocarbonate specimens from Greenland. 1975Amer. Mineralogist LX. 351 Intimate syntaxy between parisite, synchisite, roentgenite, and bastnaesite was..observed even on a very fine scale. |