| 释义 |
parsonsite Min.|ˈpɑːsənzaɪt|
[a. F. parsonsite (A. Schoep 1923, in Compt. Rend. CLXXVI. 173), f. the name of Arthur L. Parsons (b. 1873), Canadian mineralogist: see -ite1 2 b.]
A hydrated phosphate of lead and uranium, Pb2(UO2)(PO4)2.2H2O, found as crusts and powdery aggregates of transparent or translucent, minute, lath-like crystals.
1923Chem. Abstr. XVII. 1776 (heading) Parsonsite, a new radioactive mineral. 1950Amer. Mineralogist XXXV. 247 Parsonsite occurs at the Ruggles pegmatite near Grafton Center, Grafton County, New Hampshire, as crusts of microscopic spicular or lath-like crystals... The parsonsite is associated with autunite and phosphuranylite and all of these have ultimately been derived from the alteration of the primary uraninite. 1964Bull. U.S. Geol. Survey No. 1064. 233 Parsonsite probably is monoclinic, but the possibility of triclinic symmetry cannot be ruled out. |