Retzian-(Nd)

General Information: Chemical Formula:Mn2(Nd,Ce,La)(AsO4)(OH)4 Composition:(Molecular Weight = 459.29 gm)Lanthanum 3.02 % LaCerium 9.15 % CeManganese 23.92 % MnArsenic 16.31 % AsHydrogen 0.88 % H Neodymium 18.84 % NdOxygen 27.87 % O  Empirical Formula: Mn2+2Nd0.6Ce0.3La0.1(AsO4)(OH)4 IMA Status:Approved IMA 1987Physical Properties: Cleavage:None Color:pink brown or reddish brown. Density:4.45 Diaphaniety:Subtranslucent Hardness:3-4 - Calcite-Fluorite Luster:Vitreous - Dull Streak:light brownMore details...