[meteorite-list] More on green spots in stoneys

[Zelimir Gabelica]

Yes, Tracy, you are right.

The name "mawsitsit" may well originate from the Burmese locality "Tawmaw" 
where kosmochlor (jadeite) is being found. It seems to be only known as 
(macroscopically) massive.

Btw: yes, this post is still fairly meteorite-related.
Indeed, Tucson show (perhaps along with Munich and, to a lesser extent, Ste 
Marie) is THE place where you could find in abundance all kind of 
meteorites and minerals that are composing them.
Collecting both can also be a nice way to diversify and make your meteorite 
collection original....

Zelimir
(still waiting for a host site for my Belle Plaine green inclusion pics, in 
case of interest)



A 17:50 02/02/2009 +0000, tracy latimer a écrit :

>My curiosity was piqued with a hazy memory, and I went online searching 
>for pictures of 'kosmochlor'.  Now I remember where I had heard the term 
>before; it's a variant of jadeite, often found in small quantities around 
>the same deposits as what is known to jewelers as 'jade', but harder 
>because of the fibrous composition.  In the jewelry trade, it's often 
>called 'mawsitsit', and is treated the same way as jade.  At Tucson, I 
>don't doubt that anyone who wants can find massive pieces of it, either 
>raw or finished, if you want a comparison sample.
>
>Tracy Latimer
>
>----------------------------------------
> > Date: Mon, 2 Feb 2009 11:50:49 +0100
> > To: Meteorite-list at meteoritecentral.com; bernd.pauli at paulinet.de
> > From: Zelimir.Gabelica at uha.fr
> > Subject: [meteorite-list] More on green spots in stoneys
> >
> >
> > Still considering the pyroxene family, an interesting pyroxene candidate
> > that would readily involve green color would be Kosmochlor, thus 
> NaCr3+Si2O6.
> >
> >
>
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Prof. Zelimir Gabelica
Université de Haute Alsace
ENSCMu, Lab. GSEC,
3, Rue A. Werner,
F-68093 Mulhouse Cedex, France
Tel: +33 (0)3 89 33 68 94
Fax: +33 (0)3 89 33 68 15