Post subject: Agates from Argentina. MID-WEST REGION : Puma agate
Posted: Wed Feb 20, 2019 10:30 pm
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Joined: Wed Feb 13, 2019 9:04 pm Posts: 12
Puma agate.
Puma agate is a sedimentary pseudo morph agate after coral. This agate is bright green color fluorescent under UV light short wave. The deposit extent for about 100 miles from Malargue city to the south of Mendoza Province, Argentina. The usual colors of this agate are pastel blue, red and yellow. The age of this agate is the same as Condor agate : Tertiary, 30 millions years old. This agate was founded, named and introduced to the market in 1995 by Luis de los Santos
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File comment: Same Puma agate specimen as the previous one under UV light short wave. puma agate 23 A.JPG [ 221.93 KiB | Viewed 18891 times ]
Post subject: Re: Agates from Argentina. MID-WEST REGION : Puma agate
Posted: Mon Feb 25, 2019 10:24 pm
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Joined: Sun Oct 16, 2005 12:22 pm Posts: 21602 Location: San Francisco
OK! I found a nice piece and bought it from Condor Agate Mines on eBay: There really is something "other wordly about this stuff.
My specimen is inert under LWUV and the black areas glow green under SWUV. Anyone want to speculate what is causing that fluorescence in what appears to be a a very saturated reddish brown chalcedony?
Post subject: Re: Agates from Argentina. MID-WEST REGION : Puma agate
Posted: Tue Feb 26, 2019 1:59 pm
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Joined: Wed Feb 13, 2019 9:04 pm Posts: 12
The specimen that you bought is a Crater agate specimen from Chubut Province, Argentina. The red botryoidal center is the remains of Hematite layer that over time oxidized and created a coating of jasper. The green color fluorescence is because the formation was in contact with Uranium salt.
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