[meteorite-list] Cubic Minerals in Meteoirtes Oops! More on Winner! Pt.2 cont.

From: drtanuki <drtanuki_at_meteoritecentral.com>
Date: Mon Feb 21 13:58:42 2005
Message-ID: <20050221185539.24808.qmail_at_web53205.mail.yahoo.com>

Dear List,
  Harald actually had more but they were sent in an
email that I had overlooked. Here are more of his
answers. Thanks!! dirk...tokyo
--- "Harald Stehlik (VI/SEA)"
<harald.stehlik_at_ericsson.com> wrote:

> Date: Mon, 21 Feb 2005 14:01:02 +0100
> here we go: (all described only from meteorites
> yet...
>
> Majorite (Mg3(Fe,Al,Si)2(SiO4)3), Isometric -
> Hexoctahedral - H-M Symbol (4/m 3 2/m) Space Group:
> I a3d
> Niningerite ((Mg,Fe++,Mn)S), Isometric -
> Hexoctahedral - H-M Symbol (4/m 3 2/m) Space Group:
> F m3m
> Oldhamite ((Ca,Mg,Fe)S), Isometric - Hexoctahedral -
> H-M Symbol (4/m 3 2/m) Space Group: F m3m
> Osbornite (TiN), Isometric - Hexoctahedral - H-M
> Symbol (4/m 3 2/m) Space Group: F m3m
> Ringwoodite (Mg2SiO4) - high press. polymorph of
> forsterite. - Isometric - Hexoctahedral - H-M Symbol
> (4/m 3 2/m) Space Group: F d3m
> Roaldite (Fe4N), Isometric - Hextetrahedral - H-M
> Symbol (4 3m) Space Group: P 43m
> Suessite ((Fe,Ni)3Si), Isometric - Hexoctahedral -
> H-M Symbol (4/m 3 2/m) Space Group: I m3m
> Taenite (gamma-(Fe,Ni) ), Isometric - Hexoctahedral
> - H-M Symbol (4/m 3 2/m) Space Group: F m3m
> Zhanghengite ((Cu,Zn,Fe,Al,Cr) ), - Isometric -
> HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: I
> m3m
>
> i think this are the most important ismometric
> minerals in Meteorites
>
> i will likely write an article about Ringwoodite in
> L-chondrites this year... :-)
>
> best regards and wishes
> from Austria
>
>
> Harald
>


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Received on Mon 21 Feb 2005 01:55:39 PM PST