...Table 2. Electron-microprobe analyses of scandian milarite from Heftetjern. ...

... prismatic crystals up to 100 μm in diameter, frequently with very thin crystals of Sc-free milarite up to ~10–20 μm across in parallel orientation on the (001) faces, or as a product of replacement with other Sc-bearing minerals. Oftedalite – Sc-rich milarite is greyish white with a colorless streak...

... in albite. Other associated minerals are fluorite, muscovite, altered milarite, a metamict, dark greyish brown mineral of the pyrochlore-microlite group, and an unidentified, orange-brown, tabular, nearly X-ray amorphous Ti-Y-Ta-Nb-mineral. Electron-microprobe analysis yielded the empirical formula (Sc 0.64...

...Frank C. Hawthorne; Yassir A. Abdu; Neil A. Ball; Petr Černý; Roy Kristiansen Abstract Agakhanovite-(Y), ideally (YCa)□ 2 KBe 3 Si 12 O 30 , is a new milarite-group mineral from the Heftetjern pegmatite, Tørdal, southern Norway. Crystals are prismatic along [001], and show the forms {100} and {100...

...Milan Novák; Jaroslav Cícha; Renata Čopjaková; Radek Škoda; Michaela Vašinová Galiová Four distinct paragenetic, morphological and compositional types of milarite-group minerals were distinguished in the NYF pegmatite Velká skála, Písek district, Czech Republic (Moldanubian Zone). The simply zoned...

..., phenakite, bavenite, bertrandite, milarite, tremolite, diopside, uraninite, aikinite, galena, Sc-rich ixiolite and a few Sc-bearing silicates, including cascandite, Sc-rich actinolite (Pieczka et al ., 2024a ), scandio-winchite (Pieczka et al ., 2024b ), kristiansenite, bazzite and heflikite (Pieczka...

.... It is invariably euhedral, with a wide variety of colours and habits. Minerals associated with titanites are scandian epidote-allanite, scandiobabingtonite, kristiansenite, calcian hingganite-(Y), milarite, spessartine and occasional fluorite. Preliminary compositional data indicated significant amounts of Sn, Ta...

..., phenakite, helvine–danalite; secondary: bavenite–bohseite, milarite–agakhanovite-(Y), hingganite-(Y), bazzite), Sn-minerals (primary: cassiterite, herzenbergite; secondary: stokesite) and common greenish K-feldspar (amazonite variety). Mineral symbols are abbreviated according to Warr (2021...

... al ., 2005 ) was the starting point for subsequent systematic investigations of garnet-group minerals from this occurrence. These led to the discovery of anew garnet – eringaite (scandian analogue of andradite) – with the empirical formula (Ca 2.98 Y 0.01 Mg 0.01 ) Σ3 (Sc 0.82 \batchmode...

... in several secondary Be-bearing minerals such as bertrandite, phenakite, bavenite, milarite, bityite and epididymite, listed in the order of increasing alkalinity of fluids from acidic (~pH 4–5) to alkaline (up to ~pH 10–11) ( cf. Černý 2002 ). Primary (Na,Mg)-enriched beryl from the euxenite...

... = microcline; Phl = phlogopite; Qz = quartz ( Warr 2021 ); Swns = scandio-winchite. Studies of synthetic scandian analogs of fluor-eckermannite, fluor-nybøite, pargasite, and fluor-pargasite show that Sc mainly occupies the M2 sites ( Raudsepp et al. 1987a , 1987b , 1991 ; Oberti et al. 1999...

... minerals included in Table 1 , bringing the total to 112 valid Be minerals. Pršek et al. (2010) reported a hingganite in which Nd is dominant among the rare earth elements + yttrium, which is potentially a new species, hingganite-(Nd). Hawthorne (2002) suggested that yttrian milarite approaching...

.... & Juve, G. (1988) Scandian ixiolite, pyrochlore and bazzite in granite pegmatite in Tørdal, Telemark, Norway. A contribution to the mineralogy and geochemistry of scandium and tin . Mineralogy and Petrology 38 , 229 – 243...

... mineral. RK is happy to be a part of this tribute Ed Grew, and acknowledges the constructive collaboration of more than two decades. R eferences Bergstøl , S. & Juve , G. ( 1988 ) Scandian ixiolite, pyrochlore and bazzite in granite pegmatite in Tørdal, Telemark, Norway...

.... Other associated minerals are: scandiobabingtonite, scandian ixiolite, hingganite-(Y), cerian epidote, titanite, plumbomicrolite and other microlite minerals, bazzite, milarite, cassiterite and two unidentified tantalum minerals (rynersonite? and tantite?). General appearance : Tapering crystals...

...) Scandian Ixiolite, Pyrochlore and Bazzite in Granite Pegmatite in Tørdal, Telemark, Norway. A contribution to the Mineralogy and Geochemistry of Scandium and Tin . Mineralogy and Petrology 38 , 229 – 243 . Bingen, B. & Van...