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Re: dragonfly fossil

Posted by Keith on January 06, 1999 at 16:01:55:

In Reply to: dragonfly fossil posted by Steve Goins on January 06, 1999 at 00:37:47:

Steve, what a great find. Since the discovery label indicates the Salton Sea I would suspect salt encrustation first. Can you see any halite (salt) crystals under low magnification? They would be cubic.
If you are up to it,lick a corner, is it salty? Secondly we get a lot of calcium carbonate in this area and the "color" has that look to it. Put a drop of vinegar in one corner and see if it fizzes. If it has been encrusted in salt or calcium carbonate then it is probably fairly recent in origin. If it's quartz as PK suggests then I'd say you have quite a find. Either way it is a unique specimen. I would love to see it in person. Where are you going to be in Tucson?


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