IMA No. 2006-030 - IMA 2006-035

[Stefan]

siehe http://www.geo.vu.nl/users/ima-cnmmn/minerals06-10.pdf


Each mineral is described in the following format:
IMA number
Type locality
Corresponding author
Chemical formula
Relationship to other minerals
Crystal system, Space group; Structure determined, yes or no
Unit-cell parameters
Strongest lines in the X-ray powder-diffraction pattern

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IMA No. 2006-030
Tsumeb, Namibia
John L. Jambor
Cu5Ge0.5S4
Cubic: Fm3m, F432, or F4 3m
a 5.337 Å
3.053(100), 2.639(10), 1.869(90), 1.595(30)


IMA No. 2006-031
Långban deposit, Bergslagen ore region, Filipstad district, Värmland, Sweden
Nikita V. Chukanov
Pb7+xMg4.5[(Si,Al)5O14](BO3)(BO3,AsO4)(CO3)(OH,O)7
Layer silicate
Triclinic: P 1 ; structure determined
a 9.3409, b 9.3597, c 18.8333 Å, α 80.365, β 75.816, γ 59.870º
18.1 (100), 3.39(30), 3.02(90), 2.698(70), 2.275(30), 1.867(30), 1.766(40), 1.519(40)


IMA No. 2006-032
Konsomolsk mine, Talnakh, Norilsk, Russia
Julia D. Grtisenko
(Fe,Co)As3
Skutterudite group
Cubic: Im3
a 8.17 Å
5.8(3), 3.34(4), 2.585(10), 2.182(9), 1.928(4), 1.829(7), 1.667(5), 1.602(7), 1.402(6)


IMA No. 2006-033
Kirovskii mine, Mt. Kukisvumchorr, Khibiny massif, Kola Peninsula, Russia
Igor V. Pekov
BaCa2(CO3)2F2
New structure type
Orthorhombic: Cmcm; structure determined
a 12.511, b 5.857, c 9.446 Å
5.303(21), 3.527(100), 3.397(71), 2.609(20), 2.313(43), 2.302(22), 1.948(39), 1.940(40)


IMA No. 2006-034
La Fossa crater, Vulcano, Eolian Islands, Italy
Italo Campostrini
K2[SiF6]
Polymorphous with hieratite
Hexagonal: P63mc; structure determined
a 5.6461, c 9.2322 Å
4.90(25), 4.62(75), 4.32(43), 2.358(22), 2.301(100), 2.155(54), 1.909(14), 1.403(13)


IMA No. 2006-035
NWA 470 chondrite, near Er Rachidia, Moroccan Sahara
Marina A. Ivanova
CaAl2O4
Monoclinic: P21/c
a 7.95, b 8.62, c 10.25 Å, β 93.10°
3.018(100), 2.920(83), 2.882(52), 2.559(42), 2.505(46), 2.371(31), 1.888(29), 1.467(29)