Dear Fatemeh,
even if you haven't easy access to a SEM or electron probe, you can get
very useful information by conventional transmitted light microscopy, and
additional info by reflected light on carefully polished sections.
Fluid inclusion are isotropic, whereas quartz and many other solids aren't.
Graphite and ilmenite have distinctive birefringence and pleochroism in
reflected light, and so on. Of course sooner or later you'll need a SEM.
Concerning the possibility that they (or some of them) are fluid
inclusions, given the occurrence within the crystal, without touching its
boundaries, I would argue they are primary (trapped during crystal growth)
rather than secondary (trapped by a fracturing/healing process).
Best Regards,
Bernardo
--
Bernardo Cesare
Dipartimento di Geoscienze
Via Giotto, 1, I-35137 PADOVA ITALY
Tel: ++39-049-8272019 Fax: ++39-049-8272010
email: [log in to unmask]
web site: http://www.dmp.unipd.it/bernardo/bernardo.html
> ---------- Forwarded message ----------
> From: FATEMEH ERFANI <[log in to unmask]>
> Date: Mon, Dec 8, 2008 at 2:12 PM
> Subject: Fwd: Staurolite
> To: [log in to unmask]
>
>
>
>
> ---------- Forwarded message ----------
> From: FATEMEH ERFANI <[log in to unmask]>
> Date: Sun, Dec 7, 2008 at 9:06 AM
> Subject: Staurolite
> To: [log in to unmask]
>
>
> *Dear sir*
>
> It is Fatemeh Fadavi new member of your beneficial comunity MSG.
> I am master of petrology who has worked on metapellitic rocks.
> Resently i has seen a sympelectite texture on Staurolite in a Garnet
> Staurolite Silimanite schist.
> Do you minde if you follow me how can i find apporpriate contents about it
> or where can i download suitable papers.
>
> Thanks for your attention
> Sinserely yours
> *F.Fadavi*
>
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