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Collection of Tobi
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Tobi




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PostPosted: Jun 06, 2015 09:07    Post subject: Re: Collection of Tobi  

Besides that discussion, can anyone help concerning the sulfide question?
Tobi wrote:
[...]Some of the fluorites include tiny crystals of a sulfide mineral, is this chalcopyrite?
Thanks :-)
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Tobi




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PostPosted: Jun 30, 2015 11:29    Post subject: Re: Collection of Tobi  

Fluorite from Yaogangxian Mine:


YaoFLUO.JPG
 Mineral: Fluorite, quartz, siderite (?)
 Locality:
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province, China
 Dimensions: Specimen size 12 cm, largest fluorite 2,4 cm
 Description:
 Viewed:  21823 Time(s)

YaoFLUO.JPG


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Tobi




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PostPosted: Jun 30, 2015 11:44    Post subject: Re: Collection of Tobi  

Pyromorphite from Spain:


ResupPYRO.JPG
 Mineral: Pyromorphite
 Locality:
Resuperferolítica Claim, Cerro de la Canaleja, Santa Eufemia, Comarca Los Pedroches, Córdoba, Andalusia, Spain
 Dimensions: Specimen size 4 cm, largest crystal 6 mm
 Description:
 Viewed:  21762 Time(s)

ResupPYRO.JPG


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Tobi




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PostPosted: Jun 30, 2015 12:01    Post subject: Re: Collection of Tobi  

And finally, a superbly crystallized specimen of galena from Germany:


FreibGAL.JPG
 Mineral: Galena, fluorite, sphalerite
 Locality:
Beihilfe Mine, Halsbrücke, Freiberg District, Erzgebirgskreis, Saxony/Sachsen, Germany
 Dimensions: Specimen size 4 cm, largest crystal 7 mm
 Description:
 Viewed:  21756 Time(s)

FreibGAL.JPG


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GneissWare




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PostPosted: Jun 30, 2015 12:20    Post subject: Re: Collection of Tobi  

All of these are very nice!
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Carles Millan
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PostPosted: Jun 30, 2015 13:31    Post subject: Re: Collection of Tobi  

GneissWare wrote:
All of these are very nice!

I agree, especially about the galena because of its sharp edges and well defined faces. Good acquisitions, Tobi !
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Joseph DOliveira




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PostPosted: Jun 30, 2015 18:31    Post subject: Re: Collection of Tobi  

Very nice galena Tobi.
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Tobi




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PostPosted: Jul 01, 2015 11:41    Post subject: Re: Collection of Tobi  

Thanks guys, I like the galena, too! Of course it found its way to the Saxony thread in our virtual mineralogical trip through Germany: https://www.mineral-forum.com/message-board/viewtopic.php?p=45928#45928
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Andreas Gerstenberg




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PostPosted: Jul 14, 2015 09:40    Post subject: Re: Collection of Tobi  

What are these brownish small crystals? Siderite/Dolomite or fluorite? Nice specimen but looks a bit uncommon for Beihilfe.
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Tobi




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PostPosted: Jul 14, 2015 10:17    Post subject: Re: Collection of Tobi  

Andreas Gerstenberg wrote:
What are these brownish small crystals? Siderite/Dolomite or fluorite? Nice specimen but looks a bit uncommon for Beihilfe.
Pale yellow fluorite cubes.
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Andreas Gerstenberg




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PostPosted: Jul 14, 2015 10:22    Post subject: Re: Collection of Tobi  

Okay, should be Halsbrücke then. Nice miniature!
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chris
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PostPosted: Jul 14, 2015 10:31    Post subject: Re: Collection of Tobi  

Halo Tobi,

I like the galena too & you are a far better mineral photographer than me.

Christophe
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Tobi




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PostPosted: Jul 14, 2015 16:56    Post subject: Re: Collection of Tobi  

Andreas Gerstenberg wrote:
Nice miniature!
chris wrote:
I like the galena too & you are a far better mineral photographer than me.
Thanks guys, it's indeed a lovely mineral specimen and a highlight of my galena collection!

And Chris, also thanks for the compliment ... but my skills in photographing minerals are rather low. Good pictures - like that of the Freiberg galena - always depend on the specimens themselves, what colour they have, how they reflect light etc.; there are some specimens where I can only resign. I even have some specimens in my collection which I never managed to shoot properly and load them up on Mindat or here on FMF. If I was a really good mineral photographer, I sure would have won those "battles" ...

Tobi
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Tobi




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PostPosted: Sep 06, 2015 02:03    Post subject: Re: Collection of Tobi  

Here's a new German fluorite specimen, very small and unspectacular, but somehow aesthetic and from a relatively unkown locality in Bavaria. Well, I guess Andreas Gerstenberg (https://www.mineral-forum.com/message-board/viewtopic.php?t=980), if he reads this, will laugh his head off because HE knows EVERY mineral locality in our country ;-) ... But most of you may not know this village in Bavaria with its ~1800 inhabitants ;-)

This specimens features several tiny fluorite crystals on a bed of red eisenkiesel quartz. The matrix consists of another generation of purple fluorite.



BachFLUO.JPG
 Mineral: Fluorite on Quartz (variety eisenkiesel)
 Locality:
Roywiesen adit, Reißbühl Mine, Bach, Bach an der Donau, Donaustauf, Regensburg, Upper Palatinate/Oberpfalz, Bavaria/Bayern, Germany
 Dimensions: Specimen size 4,5 cm, largest fluorite 6 mm
 Description:
 Viewed:  20769 Time(s)

BachFLUO.JPG


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Fiebre Verde




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PostPosted: Sep 06, 2015 03:08    Post subject: Re: Collection of Tobi  

Pretty eye-catchy for an unspectacular specimen!
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Tobi




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PostPosted: Sep 06, 2015 03:16    Post subject: Re: Collection of Tobi  

Another specimen from Germany, this time from a well-known locality. Well defined, lustrous chalcopyrite crystals on white baryte blades. From the former "mass production" locality of Dreislar in Sauerland (North Rhine-Westphalia) which is now closed:


BaryDREIS.JPG
 Mineral: Chalcopyrite, Baryte
 Locality:
Dreislar Mine, Dreislar, Winterberg, Sauerland, North Rhine-Westphalia/Nordrhein-Westfalen, Germany
 Dimensions: Specimen height 6 cm, largest chalcopyrites 5 mm
 Description:
 Viewed:  20713 Time(s)

BaryDREIS.JPG


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Pierre Joubert




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PostPosted: Sep 06, 2015 09:53    Post subject: Re: Collection of Tobi  

Very nice Tobi (chalcopyrite crystals on white baryte blades)!
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Tobi




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PostPosted: Sep 07, 2015 05:11    Post subject: Re: Collection of Tobi  

Fiebre Verde wrote:
Pretty eye-catchy for an unspectacular specimen!
Thanks Gérard, but "eye-catchy" is a bit exaggerated. The specimen is really small, has a simple shape and not much colour contrast; you'll have to get veeery close to the illuminated display to see its beauty, so it hasn't the potential to be an eye-catcher ... but nevertheless it's a cool miniature from an uncommon German locality and thus I like it as a welcome addition to my collection :-)

Pierre Joubert wrote:
Very nice Tobi (chalcopyrite crystals on white baryte blades)!
Thanks Pierre, I also love this one. Most Dreislar specimens don't appeal to me because they consist of massive baryte with small dark points of chalcopyrite. But this one belongs to the better ones, the baryte shows a nice foliated structure and the chalcopyrites are quite large, well defined and really shiny.

The following picture shows the new label for this specimen. I'm planning to make new labels for my display collection; and this is my current idea using the example of the Dreislar baryte. Additional information: "Kupferkies" is the German word for chalcopyrite ("Kupfer" is the German word for copper and "-kies" is a suffix often used for sulfides) and "Schwerspat" is an old term for baryte, meaning "heavy spar".

Tobi



Etikett Dreislar.jpg
 Mineral: Label
 Description:
 Viewed:  20582 Time(s)

Etikett Dreislar.jpg


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Andreas Gerstenberg




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PostPosted: Sep 07, 2015 05:19    Post subject: Re: Collection of Tobi  

The fluorite looks like a Royeswiese mine specimen;-)
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Jordi Fabre
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PostPosted: Sep 11, 2015 16:50    Post subject: Re: Collection of Tobi  

Andreas Gerstenberg wrote:
The fluorite looks like a Royeswiese mine specimen;-)

Thanks Andreas, already modified -> https://www.mineral-forum.com/message-board/viewtopic.php?p=46665#46665
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