webmineral.com/data/Trimounsite-%28Y%29.shtmlPE Trimounsite-(Y) = 132.24 barns/electron U=PE Trimounsite-(Y) x r electron = 583.54 barns/cc. Radioactivity: GRapi = 15,005.90 (Gamma Ray American Petroleum Institute Units) Concentration of Trimounsite-(Y) per GRapi unit = 66.64 (PPM) Trimounsite-(Y) is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram. ...
www.handbookofmineralogy.org/pdfs/trimounsite-(Y).pdfTrimounsite-(Y) Y2Ti2SiO9 °c 2001 Mineral Data Publishing, version 1.2 Crystal Data: Monoclinic. Point Group: 2=m: As prismatic crystals, elongated along , up to 5 mm; showing f110g, f130g, f010g, f211g, f121g, f011g, striated on f110g and f130g.
virtualcollections.naturalsciences.be/.../trimounsite-y-rc3967Name: Trimounsite-(Y) Location: Trimouns, Ariège, France Name Reference: Named after its discovery locality, Trimouns talc deposit, near Luzenac, Ariege, France. Chemical Formula: (Y 2,REE)Ti 2 (SiO4)O5 Crystal System and Class: Monoclinic - Prismatic. Accompanying Minerals: Origin (Determinator + Year): Gatel P. 1988
www.mindat.org/gm/4019Trimounsite-(Y), Clinochlore, Dolomite Trimouns Talc Mine, Luzenac, Ariège, Occitanie, France Collection & Photo: Pascale & Daniel Journet Group of Trimounsite with Clinochlore on Dolomite
www.mindat.org/gallery.php5CR-DYQ Trimounsite-(Y) Y 2 Ti 2 (SiO 4)O 5, Clinochlore Mg 5 Al(AlSi 3 O 10)(OH) 8, Dolomite CaMg(CO 3) 2. Trimouns Talc Mine, Luzenac, Foix, Ariège, Occitanie, France Dimensions: 59 mm x 40 mm x 35 mm Field of View: 10 mm Collection & Photo: Pascale & Daniel Journet Group of Trimounsite with Clinochlore on Dolomite.
www.schweizerbart.de/.../The_crystal_structure_of_trimounsite_Y_Y_REE_2Ti2SAbstract. The intriguing crystal structure of type material trimounsite-(Y), (Y,REE)2Ti2SiO9, a = 12.293(2), b = 11.124(2), c = 4.8610(10) Å, β = 95.69(3)°, V = 661.5(2) Å3, Z = 4, was determined using single-crystal diffractometer data (MoKα X-radiation, CCD area detector) and has been refined in space group P21/c to R(F) = 3.45 % for 1821 'observed' reflections with Fo > 4σ(Fo).
en.wikipedia.org/wiki/List_of_minerals_approved_by_IMA_(T)This list includes those recognised minerals beginning with the letter T.The International Mineralogical Association is the international group that recognises new minerals and new mineral names, however minerals discovered before 1959 did not go through the official naming procedure, although some minerals published previously have been either confirmed or discredited since that date.