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Old 09/07/2015, 05:48 PM   #1744
mathman7728
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Join Date: Jan 2010
Location: Gig Harbor, WA
Posts: 230
can ID this? found long string of this on one rock

thank you!!!

i've attached a photo from a microscope



Last edited by mathman7728; 05/26/2018 at 08:54 AM.
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