Gadolinite, sometimes known as ytterbite, is a silicate mineral consisting principally of the silicates of cerium, lanthanum, neodymium, yttrium, beryllium, and iron with the formula (Ce,La,Nd,Y) 2 FeBe 2 Si 2 O 10. It is called gadolinite-(Ce) or gadolinite-(Y), depending on the prominent composing element (Y if yttrium predominates, and Ce if ...

In contrast to the Norwegian sample, gadolinite-(Ce) from the Malmkärra mine, Norberg, Sweden is U-free and Th-free and is non-metamict. This material shows normal anisotropic optical properties consistent with a monoclinic symmetry (non-zero birefringence; biaxial nature).

Gadolinite mineral data, information about Gadolinite, its properties and worldwide locations.

Gadolinite Subgroup > Gadolinite Group > Gadolinite Supergroup Name: Named in honor of Johan Gadolin (5 June 1760, Turku, Finland - 15 August 1852, Mynämäki, Finland), chemist, physicist, and mineralogist.

2014年3月25日 · It is called gadolinite-(Ce) or gadolinite-(Y) depending on the prominence of the variable element composition (namely, Y if it has more yttrium, and Ce if it has more cerium). It may contain 35.48% yttria sub-group rare earths, 2.17% ceria …

2024年10月18日 · Gadolinite is a silicate mineral that contains rare earth elements like yttrium, cerium, and gadolinium. It was first discovered in 1787 in a quarry in Ytterby, Sweden. The mineral is named after Johan Gadolin, who was the first to isolate the element yttrium from gadolinite. Gadolinite typically forms in granite pegmatites and other igneous rocks.

Calculated Properties of Gadolinite-(Ce) Electron Density: Bulk Density (Electron Density)=3.82 gm/cc note: Specific Gravity of Gadolinite-(Ce) =4.20 gm/cc.

2023年11月6日 · Gadolinite is a green to black stone that’s rarely faceted. It’s known for containing rare earth elements and being historically notable. Learn gadolinite history, properties, varieties, and prices!

2020年11月1日 · Gadolinite [REE 2 Fe 2+ Be 2 Si 2 O 10] is a common mineral in certain types of rare element and rare earth element (REL-REE) pegmatites. Changes in pegmatite environment during and after gadolinite formation may be devised by studying its crystal-chemical properties and a thorough observation of microfeatures in the mineral matrix.

Mineral Group: Gadolinite group. Occurrence: In granite and alkalic granite pegmatites. Association: Allanite, °uorite, fergusonite, yttrialite, chevkinite, zircon. Distribution: Numerous localities worldwide: in Sweden, from Ytterby, on ResarÄo …