• Gagarinite-(Y) Mineral Data

    webmineral.com/data/Gagarinite-(Y).shtml Gagarinite-(Y) Crystallography: Axial Ratios: a:c = 1:0.58931 : Cell Dimensions: a = 5.99, c = 3.53, Z = 1; V = 109.69 Den(Calc)= 4.40 : Crystal System:
  • Gagarinite-(Y): Mineral information, data and localities.

    www.mindat.org/min-1629.html Gagarinite-(Y) Hughes J M, Drexler J W (1994) Refinement of the structure of gagarinite-(Y), Nax(CaxREE2-x)F6 The Canadian Mineralogist 32 563-565: 1994: 0: 293: CIF Raw Data - click here to close Geological EnvironmentHide. Geological Setting: In Na-metasomatized alkalic granites and syenites. Type Occurrence of Gagarinite-(Y)Hide. Type ...
  • Gagarinite-(Y) mineral information and data

    www.dakotamatrix.com/mineralpedia/6405/gagarinite-y Gagarinite-(Y) - Named in honor of the very first Russian cosmonaut, Yuri Alekseevick Gagarin. Gagarinite is a rare mineral that occurs “as disseminat
  • Gagarinite-(Ce) - Wikipedia

    en.wikipedia.org/wiki/Zajacite-(Ce) 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. It has a Mohs hardness of 3.5 and a specific gravity of 4.44 to 4.55.
  • Gagarinite-(Y): Mineral information, data and localities.

    zh.mindat.org/min-1629.html Search for Gagarinite-(Y) on Well-Arranged Molecules. Localities for Gagarinite-(Y)Hide. This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to ...
  • Gagarinite-(Y) Mineral Specimen For Sale

    www.dakotamatrix.com/products/10140/gagarinite-y Gagarinite-(Y) Formula NaCaYF 6 Crystal System Trigonal Crystal Habit Massive Cleavage Fair, None, None Luster Vitreous - Dull Color yellow, cream white, light brown, pink Streak white Class Trigonal - Rhombohedral Fracture Brittle Hardness 4.5 . Data courtesy of Webmineral. Special Info Type Locality.
  • Gagarinite | Article about Gagarinite by The Free Dictionary

    encyclopedia2.thefreedictionary.com/Gagarinite Gagarinite a mineral of the group of complex fluorides. Its chemical composition is NaCaYF6; the yttrium can be partially replaced by elements of the cerium group, and the fluorine can be partially replaced by chlorine and the (OH)− group. Gagarinite is a rare mineral. It crystallizes in a trigonal system and is characterized by small hexahedral ...
  • Gagarinite-(Y) NaCaY(F Cl)6

    www.handbookofmineralogy.org/pdfs/gagarinite-%28Y%29.pdf 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.
  • Gagarinite-(Ce) - Assignment Point

    www.assignmentpoint.com/science/geographic-minerals/gagarinite-ce.html 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 was discovered in 1993 at Strange Lake, Quebec – Labrador, (56°20’N, 64°10’W) and was initially named for Ihor Stephan Zajac, who led the expedition responsible for its ...
  • Harald DILL | Assoc. Professor | Prof.(mult.) Dr. rer. nat ...

    www.researchgate.net/profile/Harald_Dill These REE-rich pegmatites [xenotime-(Y) and gagarinite-(Y... View. Structural control of REE-pegmatites associated with the worldclass Sn-Nb-Ta-cryolite deposit at the Pitinga mine, Amazonas, Brazil.