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LocalitiesAris Quarries, Aris, Windhoek Rural, Khomas Region, Namibia

9th Aug 2011 01:51 UTCSteve Stuart Expert

I'm a novice at examining material from Aris, but I've not seen anything like this before:

FOV is about 2 mm. My guesses are a chlorite group mineral, or perhaps a weird form of tuperssuatsiaite, very matted like it was wet down. The dark orange mineral might be the "unknown Fe-analog of zakharovite".

All opinions and discussions are welcomed.

Steve

12th Aug 2011 01:46 UTCSteve Stuart Expert

My query is about the green mineral in the image. Any opinions?

14th Aug 2011 21:55 UTCSteve Stuart Expert

I have one supposition from Bill Lechner that the green mineral might be ferroceladonite. The Mindat gallery for ferroceladonite has four photos from Mont Saint-Hilaire. but does not list it as found at Aris.

Steve

9th Aug 2016 11:42 UTCAnonymous User

hello, Steve

its a fascinating piece very unusual ,well this green can be Epidoite ,where you can find crystal system of mono-clinic to hexagonal systematic.

dark green to black and extremely lustrous can be embedded in by orange-red hematite quartz from pegmatites .

Small dark green crystals are occasionally found in basalt cavities at Tafelkop embedded with amethyst deposits west of Brandberg.

9th Aug 2016 12:19 UTCGuenter Blass

Hi Steve,

ferroceladonit is listed for Aris in Mindat!

Please refer the list or the references:

Blass, G. & Tremmel, G. (2014): Neptunit und weitere neue Mineralien aus den Phonolith-Steinbrüchen von Aris, Windhoek. Mineralien-Welt 25 (1), 76-83 (in German). ;

Blaß, G., Kolitsch, U., Tremmel, G., Esche, J. (2016): Neue Mineralienfunde aus den Phonolithbrüchen von Aris in Namibia. Mineralien-Welt 27 (4), 48-60 (in German with english abstract).

But it could also be fine, acicular Aegirin.

An analysis would make sense.

regards

Günter

9th Sep 2016 11:44 UTCGuenter Blass

Hi Steve, hi all,

is a long time ago.

But here now a photo of Ferroseladonite from Aris.

Günter Blass

9th Sep 2016 11:50 UTCGuenter Blass

Hi Steve,

is a long time ago.

But here now a photo of Ferroseladonite from Aris

Günter

{ Attachment 66315 Unavailable! phorum_files/6/663/66315/Ferroseladonite, green, needles , Aris,.jpg }

9th Sep 2016 15:20 UTCUwe Kolitsch Manager

Hi Günter, wenn du mir BB und Fotograf sagt, dann kann ich es hochladen.

GA, Uwe

9th Sep 2016 15:34 UTCGuenter Blass

Hallo Uwe,

Bildbreite 3 mm, Foto u. Copyright Stephan Wolfsried, Sammlung Gerd TRemmel.

Schönen Gruß

Günter

12th Sep 2016 13:02 UTCUwe Kolitsch Manager

Now kindly uploaded by Stephan:

http://www.mindat.org/photo-770778.html

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