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

Neue Mineralien Dez. 2009

(1/2) > >>

Stefan:
IMA No. 2009-071
Cariera quarry, Signols, Oulx, Upper Susa Valley, Torino, Piedmont, Italy
Cristian Biagioni
[K,(NH4)]2(As,Sb)6(Sb,As)2S13·H2O
New structure type
Triclinic: P1; structure determined
a 9.704(1), b 11.579(1), c 12.102(2) Å, α 112.82(1), β 103.44(1), γ 90.49(1)º
10.78(100), 5.79(55), 5.39(32), 5.31(34), 4.23(35), 3.747(31), 3.157(30), 2.876(30)

IMA No. 2009-072
Centennial Eureka mine, near Eureka, Tintic district, Juab County, Utah, USA
Igor V. Pekov
(Cu,Zn)16(TeO3)2(AsO4)3Cl(OH)18·7H2O
New structure type
Monoclinic: P2, Pm, or P2/m
a 8.28(3), b 18.97(2), c 7.38(2) Å, β 121.3(6)º
18.92(100), 9.45(19), 4.716(10), 4.111(13), 3.777(24), 2.692(15), 2.524(41), 1.558(22)

IMA No. 2009-073
Åskagen, near Filipstad, Värmland, Sweden
Nikita V. Chukanov
Mn2+NdAl2Fe3+(Si2O7)(SiO4)O2
Epidote group
Monoclinic: P21
a 8.78(1), b 5.710(6), c 10.02(1) Å, β 114.6(2)º /m
3.50(46), 3.22(50), 2.897(100), 2.850(73), 2.687(73), 2.606(52), 2.121(48), 1.630(59)

IMA No. 2009-074
Svodovy area, Maldynyrd mountain, Subpolar Urals, Russia (65º11'17''N 60º09'46''E)
Valentina I. Popova
(Sm, Nd)Al3(PO4)2(OH)6
Alunite-jarosite group
Trigonal: R3m
a 6.972(4), c 16.182(7) Å
5.65(43), 3.479(37), 2.925(100), 2.206(17), 2.191(22), 2.161(46), 1.881(58), 1.738(20)

IMA No. 2009-075
Karnasurt Mine, Karnasurt Mountain, Lovozero alkaline massif, Kola Peninsula, Russia
Igor V. Pekov
Na8[Al6Si6O24](PO4,CO3)1-x·3H2
Cancrinite group O (x < 0.5)
Hexagonal: P63
a 12.7345(2), c 5.1798(1) Å ; structure determined
6.380(30), 4.695(91), 3.681(37), 3.250(100), 2.758(33), 2.596(31), 2.436(21), 2.121(24)

alfredo:
#072 is Eurekadumpit
#075 is Depmeierit

Stefan:
Thank you very much!

alfredo:
Although the mineral is from the Kola Peninsula, the Russians who described it named it in honor of a real live German crystallographer and mineralogist, Wulf Helmut Heinz Depmeier (born 1944), Professor of Mineralogy and Crystallography at Christian-Albrechts University in Kiel. He is a well known specialist in crystal chemistry of the sodalite-cancrinite family of minerals and structurally related synthetic compounds.

Anyway, I thought this was an admirable example of absence of nationalism, and I hope a German will name a mineral after a Russian soon!

Stefan:
I have added the information to the mineral data

http://www.mineralienatlas.de/lexikon/index.php/MineralData?mineral=Depmeierite



--- Zitat ---Anyway, I thought this was an admirable example of absence of nationalism, and I hope a German will name a mineral after a Russian soon!
--- Ende Zitat ---
me too!

Thanks a lot
Stefan

Navigation

[0] Themen-Index

[#] Nächste Seite