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Join us to dig a giant Amethyst geode
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Joan R.




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PostPosted: Apr 02, 2008 04:50    Post subject: Last photos of the giant amethyst geode works  

More photos of the last phase of the extraction of the "monster" and their transport to the store.


geoda_gigante_016_747.jpg
 Description:
Dragging the geode.
 Viewed:  65235 Time(s)

geoda_gigante_016_747.jpg



geoda_gigante_018_561.jpg
 Description:
Only few meters more!!!
 Viewed:  65234 Time(s)

geoda_gigante_018_561.jpg



geoda_gigante_024_117.jpg
 Description:
OUTSIDE!!!
 Viewed:  65266 Time(s)

geoda_gigante_024_117.jpg



geoda_gigante_040_413.jpg
 Description:
Antonio da Silveira celebrating the final extraction works...now it is necessary to transport it.
 Viewed:  65188 Time(s)

geoda_gigante_040_413.jpg



geoda_gigante_044_121.jpg
 Description:
All of our heavy equipment are so large that this operation must use much imagination to mobilize without compromising its integrity
 Viewed:  65190 Time(s)

geoda_gigante_044_121.jpg



geoda_gigante_046_146.jpg
 Description:
 Viewed:  65236 Time(s)

geoda_gigante_046_146.jpg



geoda_gigante_051_271.jpg
 Description:
The Geode on the top of Santiño hill.
 Viewed:  65245 Time(s)

geoda_gigante_051_271.jpg



geoda_gigante_048_188.jpg
 Description:
The geode is 100% safe!!!
 Viewed:  65219 Time(s)

geoda_gigante_048_188.jpg



llegadageoda_188.jpg
 Description:
The truck, the Geode ready.
 Viewed:  65245 Time(s)

llegadageoda_188.jpg



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Joan R.




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PostPosted: Apr 28, 2008 05:49    Post subject: Re: Join us to dig a giant amethyst geode  

After a comment from a Spanish forum's partner about the possible use of geological radar detection technologies, Antonio da Silveira confirmed that geologists from the Mining and Geology National Department of Uruguay had been visiting the region where they would like to use this technique.

In Antonio own words: -We are waiting anxiously as it will be a big step for our mining

Photos of the current Geode in its final stage:



Giant_Geode_from_Artigas_Uruguay_054.jpg
 Description:
The Giant Geode.
 Viewed:  65094 Time(s)

Giant_Geode_from_Artigas_Uruguay_054.jpg



Giant_Geode_from_Artigas_Uruguay_058.jpg
 Description:
Final cleaning work.
 Viewed:  65101 Time(s)

Giant_Geode_from_Artigas_Uruguay_058.jpg



Giant_Geode_from_Artigas_Uruguay_103.jpg
 Description:
Excellent Amethyst quality A.
 Viewed:  65112 Time(s)

Giant_Geode_from_Artigas_Uruguay_103.jpg



Giant_Geode_from_Artigas_Uruguay_104.jpg
 Description:
Light crossing the big Amethyst vug.
 Viewed:  65042 Time(s)

Giant_Geode_from_Artigas_Uruguay_104.jpg



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Antonio Da Silveira




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PostPosted: Jul 16, 2008 17:19    Post subject: Re: Join us to dig a giant amethyst geode  

" FINISHED WORK "


Best Regards

Antonio



Giant Geode -02.JPG
 Description:
Santiño Mine - Artigas, Uruguay
 Viewed:  64637 Time(s)

Giant Geode -02.JPG



Giant Geode -01.JPG
 Description:
Santiño Mine - Artigas, Uruguay
 Viewed:  64580 Time(s)

Giant Geode -01.JPG



Giant Geode -03.JPG
 Description:
Santiño Mine- Artigas, Uruguay
 Viewed:  64584 Time(s)

Giant Geode -03.JPG


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Goldfinger




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PostPosted: Oct 22, 2010 16:46    Post subject: Re: Join us to dig a giant Amethyst geode  

Can someone provide pictures of the saw used to cut these geodes? I have never seen such huge geodes, much less seeing how they are cut.

Thanks

Steve
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Antonio Da Silveira




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PostPosted: Oct 22, 2010 19:29    Post subject: Re: Join us to dig a giant Amethyst geode  

Dear Steve,

Here see you can the saw used to cut these big geodes.
https://picasaweb.google.com/stonesmines/OCTUBRE2010?authkey=Gv1sRgCMrSg9G72d-i5AE#5531024263890152546
(link normalized by FMF)

Antonio
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Jordi Fabre
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PostPosted: Oct 23, 2010 04:20    Post subject: Re: Join us to dig a giant Amethyst geode  

Is something wrong in your link Antonio, it seems don't have images....
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Goldfinger




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PostPosted: Oct 23, 2010 06:03    Post subject: Re: Join us to dig a giant Amethyst geode  

Antonio-

I can't see the pictures in your links either.

Steve
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Antonio Da Silveira




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PostPosted: Oct 23, 2010 10:16    Post subject: Re: Join us to dig a giant Amethyst geode  

https://picasaweb.google.com/stonesmines/OCTUBRE2010?authkey=Gv1sRgCMrSg9G72d-i5AE#5531024263890152546
(link normalized by FMF)
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Jordi Fabre
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PostPosted: Oct 23, 2010 10:16    Post subject: Re: Join us to dig a giant Amethyst geode  

Gneissware found the reason of the bad function of the link (upper and lower letters) and, kindly, sent to me the right link. It is:
https://picasaweb.google.com/stonesmines/OCTUBRE2010?authkey=Gv1sRgCMrSg9G72d-i5AE#5531024263890152546

I already corrected too in the upper post from Antonio.

Also: Antonio, someone requested a question to you in the Spanish Forum, probably you don't saw it -> https://www.foro-minerales.com/forum/viewtopic.php?p=46719#46719
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Jordi Fabre
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PostPosted: Oct 23, 2010 10:18    Post subject: Re: Join us to dig a giant Amethyst geode  

Funny, we crossed messages! ;-)
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Goldfinger




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PostPosted: Oct 23, 2010 14:43    Post subject: Re: Join us to dig a giant Amethyst geode  

Antonio Da Silveira wrote:
Dear Steve,

Here see you can the saw used to cut these big geodes.


Antonio


Now that's a real saw!!!!

Thanks

Steve
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Goldfinger




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PostPosted: Nov 22, 2010 07:17    Post subject: Re: Join us to dig a giant Amethyst geode  

Hi Everyone-

Just out of curiosity- whatever happened to this giant geode? Is it for sale? Is it in a collection. That's a magnificent piece and was wondering where it might be.

Does anyone know?

Steve
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Ru Smith




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PostPosted: Oct 19, 2012 18:26    Post subject: Re: Join us to dig a giant Amethyst geode  

I really enjoyed this story. Thanks!
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Pierre Joubert




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PostPosted: Jan 05, 2016 14:30    Post subject: Re: Join us to dig a giant Amethyst geode  

I tried to follow the links to view the saw, but as to yet, I still have to see the saw.
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James Catmur
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PostPosted: Jan 05, 2016 15:28    Post subject: Re: Join us to dig a giant Amethyst geode  

Pierre

Sadly I suspect the link has expired. But let's see if anyone knows where it is now.

James
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Pierre Joubert




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PostPosted: Jan 06, 2016 01:45    Post subject: Re: Join us to dig a giant Amethyst geode  

James wrote:
Pierre

Sadly I suspect the link has expired. But let's see if anyone knows where it is now.

James


Hi James, thank you.

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Peter Lemkin




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PostPosted: Oct 29, 2017 03:11    Post subject: Re: Join us to dig a giant Amethyst geode  

That is quite some HUGE geode! [would make a great amulet for a necklace ;-)] That is an amazing location for amethyst geodes - in size, quality and quantity. Strangely they all come from a very thin formation [not much bigger than the entrances you can see lining the formation. I have a friend in Rio Grande do Sul I might visit soon, and wonder if it is possible to visit this location and watch the miners working? I realize all the miners are registered and visitors can only watch. ;-(
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Diamond




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PostPosted: Aug 18, 2018 07:13    Post subject: Re: Join us to dig a giant Amethyst geode  

It's an alien space craft :O ... But seriously wow what a job as well to sort it out! Nice.
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B.




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PostPosted: Jul 05, 2021 17:02    Post subject: Re: Join us to dig a giant Amethyst geode  

Thru out this old thread everyone called the extracted very large example a "geode". Of course it is not a true geode, as all the Brazilian examples from Rio Grande do Sul and those from Artigas Uruguay are actually voids in basaltic lava flows, lined by quartz variety amethyst, made to look like geodes by the way they are cut out from the surrounding basalt.

Over 30 years ago, on a tour of southern Brazil, our group visited the general area where these are mined and prepared for worldwide sale. I suppose it is still quite similar as these amethyst "geode" examples have been around forever, with many still on the market for decorator accents in office showrooms etc etc. The geographic area where these were found is huge as were the mining complexes.

At that time, after they were mined, their outsides were sprayed with a rubbery compound to allow their human handlers easier handling as the raw basalt was very very rough on bare hands and even gloves. The spray gives the outside its softer, greenish-black appearance and feel.

After the spraying, the examples were graded as to size, general quality of the amethyst, whether there were any secondary calcites and any other factors affecting quality/price.

About 20+ years ago you could go to Brazilian amethyst dealers in the tent areas of the Tucson show and occasionally find really unusually nice varieties with stalactitic quartz or "skunk calcites" for reasonable prices. Within the past 10 years or so, most all these hi quality varieties have been hi graded. Now looking thru the amethyst tent dealers from Brazil shows almost all specimens to be routine quality examples.
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