释义 |
stillwellite Min.|ˈstɪlwɛlaɪt| [f. the name of F. L. Stillwell (1888–1963), Austral. geologist + -ite1.] A borosilicate of lanthanons and calcium, (Ln,Ca)BOSiO4, found as brown rhombohedral crystals.
1955McAndrew & Scott in Nature 10 Sept. 509/2 The presence of stillwellite was discovered in 1954 during a mineralogical investigation of radioactive ore..34 miles east of Mt. Isa in north-western Queensland. 1971Doklady Acad. Sci. U.S.S.R.: Earth Sci. Sections CCI. 182/1 The above data on our synthesis of the lanthanum analogs of stillwellite indicate that this borosilicate may be more widespread in nature than was previously thought. |