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Found in alkaline rocks. IMA Status: Approved IMA 1961. Locality: Kazakhstan Link to MinDat.org Location Data. Name Origin: Named after Yuri Alekseevich Gagarin (1934-1968), the first cosmonaut and the first person to travel in space. Name Pronunciation: Gagarinite- (Y) + Pronunciation.
Originally named simply gagarinite in honor of Yuri Alexeevich Gagarin (9 March 1934, Klushino, Smolensk Oblast, Soviet Union - 27 March 1968, Novosyolovo, Soviet Union), cosmonaut and the first person in space. The suffix was added by the IMA in 1987 to denote the dominant rare earth element.
The root name is for Yuri Alexeevich Gagarin (9 March 1934, Klushino, Smolensk Oblast, Soviet Union - 27 March 1968, Novosyolovo, Soviet Union), cosmonaut and the first person in space. Renamed in 2010 (IMA 10-C); the original name "zajacite- (Ce)" is discredited. Ce-analogue of gagarinite- (Y).
Gagarinite-(Ce) previously zajacite-(Ce) is a rare radioactive fluoride mineral with formula Na(REE x Ca 1−x)(REE y Ca 1−y)F 6. REE refers to rare-earth elements, mostly those belonging to the lanthanide series. It crystallizes in the trigonal rhombohedral system and has a white vitreous appearance with a conchoidal fracture.
Gagarinite mineral data, information about Gagarinite, its properties and worldwide locations.
Tenacidad frágil, débilmente magnético, levemente soluble en agua cuanto más sodio contenga. Frecuencia: Yacimientos y mineral muy raro. Usos: Coleccionismo, científico. Composición: 38,85% Óxido de Itrio, 29,41% de Fluor, 19,29% Óxido de Calcio, 18,30% de Cloro, 10,66% Óxido de Sodio. y menos 16,52% de Óxido=Cloro, Bi-Fluor.
Gagarinite-(Y) NaCaY(F,Cl)6 c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Hexagonal. Point Group: 6/m. As long- and short-prismatic hexagonal crystals, showing the forms {1010}, {1120}, {0001}, and less well-developed rhombohedral faces, to several cm. Commonly as irregular grains and granular aggregates.
