Epidote-group minerals rich in rare earth elements (REE), in particular allanite, are common
accessory phases in igneous, metamorphic, metasomatic, and sedimentary rocks. Small …

Epidote-group minerals are monoclinic in symmetry and have topology consistent with
space group P2 1/m and the general formula A2M3 [T2O7][TO4](O, F)(OH, O). Zoisite is an …

Rare earth elements (REE) have gained increasing significance for numerous technologies,
particularly in today's rapidly expanding “green transition” applications such as wind …

On the basis of characteristic assemblages, the Bastnäs-type Fe–(Cu–) REE skarn deposits
in the Bergslagen mining region of south-central Sweden can be divided into two subtypes …

The Bastnäs-type deposits, with mineral assemblages of Fe oxides, Ca-Mg silicates, rare
earth element (REE) silicates, REE fluorocarbonates, and Cu-Fe-Mo-Bi sulfides, are …

A second study of ferriallanite-(Ce) from Nya Bastnäs, Sweden, extends current data by
using electron probe micro-analysis (EPMA), laser ablation inductively coupled plasma …

Dikes of albitite cross-cut two massifs of serpentinized lherzolite in the Pyrénées, France. At
Espéchère (Hautes-Pyrénées), they are corundum-bearing, whereas at Urdach (Pyrénées …

The crystal structure of allanite from granitic pegmatite, the Daibosatsu Pass, Yamanashi,
Japan, has been refined under the constraint of chemical composition determined by …

Delhuyarite-(Ce) is a new mineral (IMA no. 2016-091) with ideal formula Ce4Mg (Fe3+
2W)□(Si2O7) 2O6 (OH) 2. It is named after Juan and Fausto de Elhuyar (Delhuyar) …

Dark-brownish, euhedral crystals of an “allanite-like” mineral occur in a hematite-
impregnated Mn-silicate rock at Kesebol, Västra Götaland, Sweden, associated with …