Yttrotungstite-(Nd), IMA 2023-064

IMA No. 2023-064 Yttrotungstite-(Nd) NdW2O7(OH)·H2O Ytgs-Nd Nyakabingo mine, Kigali, Rwanda (1°51'47" S, 29°58'40" E) Frédéric Hatert*, Simon Philippo, Pietro Vignola and Maël Guennou *E-mail: fhatert@uliege.be The Nd-equivalent of yttrotungstite-(Ce) and yttrotungstite-(Y) Monoclinic: P21/m; structure determined a = 5.8534(3), b = 8.6881(3), c = 7.0488(4) Å, ? = 105.336(5)° 4.72(100), 3.30(80), 3.12(20), 2.852(40), 2.649(30), 2.036(60), 1.829(20), 1,658(20) Type material is deposited in the collections of the Musée National d'Histoire Naturelle, 25 Rue Münster, 2160 Luxembourg, Luxembourg, catalogue number WPA504, and the Laboratoire de Minéralogie, Université de Liège, Bâtiment B18, Sart Tilman, B-4000 Liège, Belgium, catalogue number ULG 21981