| 释义 |
perrierite Min.|ˈpɛrɪəraɪt|
[a. It. perrierite (Bonatti & Gottardi 1950, in Atti d. Accad. naz. d. Lincei: Rendiconti. Classe di Sci. fis., etc. IX. 361), f. the name of Carlo Perrier (1886–1948), Italian mineralogist: see -ite1.]
A silicate of lanthanides, titanium, iron, and other elements, occurring as black or reddish brown, prismatic, monoclinic crystals.
1951Chem. Abstr. XLV. 7923 (heading) Perrierite, a new mineral. 1962Mineral. Mag. XXXIII. 45 These experiments..suggest that perrierite is probably an oxidized form of chevkinite. 1966Amer. Mineralogist LI. 1394 Recent x-ray studies of metamict minerals which occur in Virginia have shown that some of the materials heretofore reported as allanite or chevkinite are actually perrierite. 1971Ibid. LVI. 308 Chevkinite and perrierite exhibit thermal polymorphism only within certain compositional ranges. |