Belovite

General Information: Chemical Formula:(Sr,Ce,Na,Ca)5(PO4)3(OH) Composition:(Molecular Weight = 746.52 gm)Sodium 2.31 % NaStrontium 26.41 % SrCalcium 2.68 % CaCerium 28.15 % CePhosphorus 12.45 % P Hydrogen 0.14 % H Oxygen 27.86 % O  Empirical Formula: 5(Sr0.45)5(Ce0.3)5(Na0.15)5(Ca0.1)(PO4)3(OH) Environment:Alkalic ingeous rocks. IMA Status:Not Approved Locality:Mt. Karnasurt, Lovozero massif, Kola Peninsula, Russia. Name Origin:Named for Nikolai Vassilievich Belov (1891-1982), mineralogist and crystallographer, Institute of Crystallography, Moscow, Russia.Physical Properties: Cleavage:[???] Indistinct Color:honey yellow. Density:4.19 Diaphaniety:Transparent Hardness:5 - Apatite Luster:Vitreous - Greasy Streak:whiteMore details...

General Information: Chemical Formula:(Sr,La,Ce,Ca)5(PO4)3(F,OH) Composition:(Molecular Weight = 857.56 gm)Strontium 22.99 % SrCalcium 1.17 % CaLanthanum 24.30 % LaCerium 16.34 % CePhosphorus 10.84 % P Hydrogen 0.12 % H Oxygen 24.25 % O  Empirical Formula: 5(Sr0.45)5(La0.3)5(Ce0.2)5(Ca0.05)(PO4)3(OH) Environment:Alkalic ingeous rocks. IMA Status:Approved IMA (Dana # Added) Name Origin:Named for Nikolai Vassilievich Belov (1891-1982), mineralogist and crystallographer, Institute of Crystallography, Moscow, Russia.Physical Properties: Cleavage:None Color:yellow or greenish yellow. Density:4.19 Diaphaniety:Transparent Hardness:5 - Apatite Luster:Vitreous (Glassy) Streak:whiteMore details...