October 3-7—JOSHUA TREE, CALIFORNIA: Annual show; Sportsmans Club of Joshua Tree
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 Post subject: A Crater Agate from Patagonia, Argentina
PostPosted: Thu Nov 27, 2014 11:07 pm 
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This evening at Thanksgiving, I was shown a very unusual geode
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This picture was taken outside and the reflection of tree branches are on the left. The smoky outer chalcedony is crazy fluorescent with LW and SWUV.....

The agate walls are a translucent, smoky chalcedony with inclusions of fine red hematite lines. De Los Santos says the Crater agate is strongly green-fluorescent due to uranium salts.


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 Post subject: Re: A Crater Agate from Patagonia, Argentina
PostPosted: Fri Nov 28, 2014 11:14 am 
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that's quite an unusual looking agate..beautiful


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 Post subject: Re: A Crater Agate from Patagonia, Argentina
PostPosted: Fri Nov 28, 2014 9:55 pm 
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Location: Moncton, Canada
Hmmm. Might be fun to lay it down on photographic paper and see if it'll do an autoradiograph.

Cheers
Hans Durstling
Moncton, Canada

_________________
Ecclesiastes 10:19


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 Post subject: Re: A Crater Agate from Patagonia, Argentina
PostPosted: Wed Dec 10, 2014 11:48 am 
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beautiful, love the colors. I need a new ash tray, that will do :lol:


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 Post subject: Re: A Crater Agate from Patagonia, Argentina
PostPosted: Wed Dec 10, 2014 12:04 pm 
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cascaillou wrote:
beautiful, love the colors. I need a new ash tray, that will do :lol:

Ugh. I just got a mineral sample which the seller must have used as an ashtray. It stinks horribly of cigarette smoke :|

Beautiful agate, though! I've never seen one quite like it, or even much like it.


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 Post subject: Re: A Crater Agate from Patagonia, Argentina
PostPosted: Wed Dec 10, 2014 2:21 pm 
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I did a Google Search for the material. Although this is the first example I've seem, it is not unique:
CLICK HERE!


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