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Collection of Tobi
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Tobi
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PostPosted: Apr 16, 2009 08:15    Post subject: Collection of Tobi  

Hello, after my introduction as new forum member, of course i want to share some of my specimens with you. I like this thread very much and there are many great specimens from your collections. So i hope that you will like my minerals, too. I am sorry that the picture quality is maybe not the best - i'm no Jeff Scovil ;-)

The first specimen is a Vanadinite on Goethite Matrix from Taouz, Morocco. This material from Morokko is quite common, but i like this piece very much because there is a great contrast between the glassy, orange crystals and the black matrix. Overall size: 55 x 33 x 24 mm.



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Jordi Fabre
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PostPosted: Apr 16, 2009 08:23    Post subject: Re: Collection of Tobi  

Very nice photo Tobi.

I'm sorry to be picky but just to let you know, the matrix is not Goethite but a manganese oxide. After my analysis Hollandite, after other opinions Psilomelane. Anyway these manganese oxides always tends to appear mixed, so you can use what you want, but for sure not Goethite! ;-)

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PostPosted: Apr 16, 2009 08:24    Post subject: Re: Collection of Tobi  

This one is a nice German classic, i purchased it fom an old collection: Fluorite from the Clara Mine in Black Forest. Overall size: 100 x 65 x 70 mm, the largest crystal egde has a lenght of 20 mm.


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Tobi
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PostPosted: Apr 16, 2009 08:26    Post subject: Re: Collection of Tobi  

Dont's say "sorry", Jordi - thank you for telling me! Only a few hours here and yet learned something new :-)
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PostPosted: Apr 16, 2009 08:47    Post subject: Re: Collection of Tobi  

Calcite from Juchem quarry near Idar-Oberstein, Hunsrück. Overall size: 115 x 55 x 53 mm, crystals about 40 - 50 mm.


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PostPosted: Apr 16, 2009 08:57    Post subject: Re: Collection of Tobi  

A 7 mm single crystal of green Fluorite on Feldspar, from the Erongo Mountains in Namibia. Overall size: 65 x 55 x 40 mm.


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PostPosted: Apr 16, 2009 09:08    Post subject: Re: Collection of Tobi  

Elbaite from the Pederneira Mine in Minas Gerais, Brazil. The largest crystal has a lenght of 18 mm. Overall size: 40 x 30 x 15 mm.


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PostPosted: Apr 16, 2009 09:22    Post subject: Re: Collection of Tobi  

Another European classic: Garnet, var. Almandine from Ziller Valley in Austria. This large plate has an overall size of 155 x 120 x 60 mm, the largest crystals are about 20 mm.


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PostPosted: Apr 16, 2009 09:36    Post subject: Re: Collection of Tobi  

The next Garnet is a little bit smaller ;-) Spessartine in Albite from Shigar Valley in Pakistan. Overall size: 27 x 12 x 20 mm, crystals are 3, 4 and 5 mm.


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PostPosted: Apr 16, 2009 09:41    Post subject: Re: Collection of Tobi  

The last for today: A crystal clear and extremely sharp cluster of quartz from Jinkouhe, Sichuan province, China. Overall size: 90 x 70 x 75 mm.


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Ed Huskinson




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PostPosted: Apr 16, 2009 11:06    Post subject: Re: Collection of Tobi  

Nice rocks Tobias. Welcome to the fraternity. Or loonie bin, depending on your point of view.

Your specimens are nice, they have a fairly uniform size, so they go together well. They look nice as a group. Keep up the postings, and pictures. We all like pictures. Me, I like fluorites, am always excited to see a fluorite specimen from a new locality, so your mention of having fluorites from little-known German (or other European) locations holds much promise.

We all look forward to seeing more of your stuff.

Saludos from Kingman, Arizona.

Ed

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PostPosted: Apr 16, 2009 15:48    Post subject: Re: Collection of Tobi  

Big mistake!. I just noticed that I wrote Coronadite and in fact is Hollandite as we stated in this other post: https://www.mineral-forum.com/message-board/viewtopic.php?t=57.

I already corrected it in my upper text.

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PostPosted: Apr 16, 2009 15:55    Post subject: Re: Collection of Tobi  

Hi, Jordi

No trouble, for me
With Taouz I have always those tricky manganese oxides dancing in my mind....
I suppose that I have been the one that contaminated you with coronadite (despite you repeated thousands of times that is hollandite :-( )

With best wishes

Lluís
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PostPosted: Apr 17, 2009 05:14    Post subject: Re: Collection of Tobi  

Ed wants to see German Fluorite, here is one from a classic locality: Halsbrücke Mine near Freiberg (Erzgebirge, Saxony). Size: 75 x 45 x 40 mm, longest edge 25 mm.

I'm sorry for the photo quality, this specimen is better in person; the crystals are absolutely shiny and nearly lustrous. I love this bi-coloured specimens from Freiberg, the crystals are like honey inside and pale green on the edge.



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PostPosted: Apr 17, 2009 05:20    Post subject: Re: Collection of Tobi  

I didn't mean lustrous, but transparent - sorry.

Here is another German classic: Baryte/Baryte (choose the spelling you prefer ;-)) from Dreislar (Sauerland, North-Rhine-Westphalia). Covered with small Chalcopyrite crystals, overall size: 95 x 55 x 50 mm.



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PostPosted: Apr 17, 2009 06:49    Post subject: Re: Collection of Tobi  

This is an Elbaite Tourmaline from the Urubu Mine in Minas Gerais, Brazil. The crystal is hollow and has a core which is filled with Quartz. Even if the Tourmaline is broken and hollow, the piece is quite nice and impressive because of the contrast between the crystal and the white Quartz matrix. The large crystal has a lenght of 65 mm, overall size of the specimen: 95 x 70 x 60 mm.


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PostPosted: Apr 17, 2009 06:53    Post subject: Re: Collection of Tobi  

Here's a U.S. classic which i like very much: Calcite from the Sweetwater Mine in Missouri. The large crystal has a lenght of 90 mm, overall size is 95 x 90 x 50 mm.


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PostPosted: Apr 17, 2009 07:12    Post subject: Re: Collection of Tobi  

The next one is an Apatite in orange Calcite Matrix from Sludyanka (Baikal Lake area, Russia). Crystal size 40 x 25 x 25 mm, overall size 70 x 60 x 50 mm.

Our museum here in Marburg has such a matrix specimen of Apatite from Sludyanka - the largest crystal (good quality for this location and with very intense colour!) is about 150 mm in lenght. Simply incredible!



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PostPosted: Apr 17, 2009 07:24    Post subject: Re: Collection of Tobi  

Here we have a Smoky Quartz on Cleavelandite from Galilea, Minas Gerais. The collector ho sold it told me that this finds are quite new. I don't know if this is correct ...? The large crystal atop measures 55 x 35 x 30 mm, overall size of the specimen is 100 x 70 x 45 mm.


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PostPosted: Apr 18, 2009 08:44    Post subject: Re: Collection of Tobi  

A small but very beautiful Topaz specimen from Villa Garcia, Mexico. 10 mm crystal, overall size 33 x 22 x 17 mm.


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