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

Neue Mineralien Juni 2009

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Stefan:
IMA No. 2009-012
Norra Kärr, Gränna, Jönköping, Småland, Sweden (58°06' N 14°40' E)
Roberta Oberti
NaNa2(Mg2Al2Li)Si8O22F2
Amphibole group
Monoclinic: C2/m; structure determined
a 9.7043(5), b 17.7341(8), c 5.2833(3) Å, β 104.067(4)º
8.342(50), 4.435(80), 3.377(80), 3.096(40), 2.687(100), 2.557(30), 2.527(60), 2.259(40)

IMA No. 2009-013
Aris phonolite, Windhoek District, Auas Mountains, Namibia and Poudrette Quarry, Mont Saint-Hilaire, Quebec, Canada
Paula C. Piilonen
NaCe2(CO3)2[(CO3)1-xF2x]F
Related to lukechangite-(Ce), cordylite-(Ce), huanghoite-(Ce) and horváthite-(Y)
Hexagonal: P6m2; structure determined
a 5.1109(2), c 8.6713(4) Å
4.439(100), 4.352(52), 3.103(87), 2.561(38), 2.424(21), 2.212(43), 1.975(42), 1.950(16)

IMA No. 2009-014
Mount Koashva, Khibiny Massif, Kola Peninsula, Russia
Victor N. Yakovenchuk
SrF2
Fluorite group
Cubic: Fm3m
a 5.713(8) Å
3.324(100), 2.886(20), 2.029(90), 1.731(60), 1.434(20), 1.317(30), 1.172(50), 1.105(20)

IMA No. 2009-015
Mount Koashva, Khibiny Massif, Kola Peninsula, Russia
Victor N. Yakovenchuk
NaSrCeF6
Sr-Ce analogue of gagarinite-(Y)
Hexagonal: P63/m
a 6.207(7), c 3.801(9) Å
5.416(40), 3.120(100), 2.198(70), 1.796(90), 1.554(30), 1.387(30), 1.304(30), 1.173(70)

IMA No. 2009-016
Dome Rock mine, 42 km N of Mingary railway siding, South Australia, Australia (148°24'E 31°52'S)
Peter Elliott
Cu4H(AsO4)2(OH)3·H2O
New structure type
Triclinic: P1; structure determined
a 5.378(11), b 8.962(18), c 9.841(2) Å, α 75.25(3), β 83.56(3), γ 79.97(3)º
4.716(30), 3.697(25), 3.605(30), 3.119(60), 3.073(100), 2.856(40), 2.464(50), 2.443(40)

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