Mineralien / Minerals / Minerales > Systematik und Klassifikation / Systematics and Classification

Neue Mineralien IMA April 2009

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Stefan:
IMA No. 2009-001 = Byzantievit
Darai-Pioz alkaline massif, Darai-Pioz River, Tadzhikistan
Leonid A. Pautov
Ba5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4[(PO4),(SiO4)]4(BO3)9O22[(OH),F]43(H2O)
New structure type
Hexagonal: R3; structure determined
a 9.1202(2), c 102.145(5) Å
4.02(2), 3.95(2), 3.112(10), 2.982(4), 2.908(2), 2.885(2), 2.632(2), 2.127(2)

IMA No. 2009-002
Tolbachik volcano, Kamchatka peninsula, Russia
Stanislav K. Filatov
Cu3(AsO4)2
Dimorph of lammerite; known synthetic compound
Monoclinic: P21/c; structure determined
a 6.306(1), b 8.643(1), c 11.310(1) Å, β 92.26(1)º
4.41(20), 4.02(30), 3.39(50), 2.79(100), 2.34(20), 2.13(20), 2.02(20), 1.89(20), 1.64(20)

IMA No. 2009-005
Lagmannsvik, Hamarøy, Nordland, Norway (holotype), Kråkmo, Hamarøy, Nordland, Norway (cotype), Vyuntspakhk Mountain, Western Keivy, Kola Peninsula, Russia (cotype)
Igor V. Pekov
(Y,Ca,Ln)5[(Si,P)O4]3F
Apatite group
Hexagonal: P63/m; structure determined
a 9.4437(2), c 6.8169(2) Å
4.104(27), 3.160(27), 3.102(29), 2.826(100), 2.775(58), 2.737(46), 1.948(25), 1.839(28)

IMA No. 2009-006 = Orlovit
Darai-Pioz glacier (39o 30' N 70o 40' E), Alai mountain range, Tien-Shan, Tajikistan
Atali A. Agakhanov
KLi2TiSi4O11F
Mica group
Monoclinic: C2
a 5.199(3), b 9.068(7), c 10.070(4) Å, β 99.35(4)º
9.96(40), 4.48(67), 3.87(40), 3.33(100), 2.860(35), 2.600(28), 2.570(30), 2.400(31)

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