Hi Bernhardt,
You may like to have a look at the following article:
D. Visser et al., (1997): Augellite and cerian crandallite in
dumortierite quartzites, Vaca Morta quarry, Vereda range, Macaubas,
Bahia, Brazil. Mineralogical Magazine 61, pp. 607-609.
Kind Regards,
Martijn
On Thu, 30 Dec 2010 09:16:01 -0800, Saini-Eidukat, Bernhardt wrote:
> Dear Metamorphic group,
>
> A colleague (geologist) writes the note below -- would anyone on the
> list recognize this material or be able to point us in a direction?
> I hope the photos come through the list.
>
> If not you can see them at the link
> http://www.ndsu.nodak.edu/pubweb/~sainieid/temp/ [1]
>
> With thanks and best wishes for the New Year,
>
> -Bernhardt
>
> (forwarded message)
>
> My quest is to figure out the composition of the stone that will
> form my countertops.
>
> Yesterday I selected the specific slabs (photos attached). It is a
> “quartzite” from Brazil, known until the trade names of:
> · Blue Luise (= Blue Louise)
> · Dali’s Dream, or
> · Van Gogh
>
> The distributor could not help me with either the location of the
> quarry or with the mineralogic composition. The best that I’ve been
> able to find, so far, is this description for “Blue Luise”
> fromhttp://www.natural-stone-database.com/ [2]
> _“A strong clouded or wavy banded blue-green and red quartzite with
> fuchsite and kyanite.”_
>
> I do have a sample. I’m hoping to learn everything I can about the
> rock, so that a “story” can be recounted at length while a fine
> bottle of wine is being served on it. Would you be able to help?
>
> Thanks so much!
>
> --
> Bernhardt Saini-Eidukat tel 701-231-8785
> Chair, Dept. of Geosciences fax 701-231-7149
> NDSU Dept. 2745 P.O. Box 6050
> North Dakota State University Fargo, ND 58108-6050 USA
> http://www.ndsu.edu/geosci/ [3] twitter: doktrock
>
>
>
> Links:
> ------
> [1] http://www.ndsu.nodak.edu/pubweb/~sainieid/temp/
> [2] http://www.natural-stone-database.com/
> [3] http://www.ndsu.edu/geosci/
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