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Post by rockpickerforever on May 9, 2013 16:39:27 GMT -5
Moved this over from the nebula stone thread, guess nobody saw it there. Anybody know what these are? 1A. This is a slab I just recently got, at the Vista show, I believe. To me, it has a "stromatolite look" but maybe it formed as a concretion, hard to say... Maybe I need to get a closer photo. 1B. Same rock. Maybe I need to get an even closer photo. 2A. Picked this up at an estate sale a couple years ago. Have no idea. Once I washed the dirt off it, the colors really popped! 2B. Same rock, chime in if you have any ideas. It has a kind of coarse texture, may not take a great polish. Will probably leave as is. I haven't done any tests to it yet, but thought somebody may recognize it from its colors? 3A. This last one is a cobble found on the beach in Cardiff. Little tiny orbs, 1/4" or smaller. 3B. Cut in half 3C. 3D. Any comments appreciated! Thanks. Jean
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gerard
starting to spend too much on rocks
Member since April 2011
Posts: 218
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Post by gerard on May 9, 2013 16:45:28 GMT -5
kinda looks like stramatolite to me, but i am way far from an w=expert on that stuff.
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on May 9, 2013 17:33:41 GMT -5
I agree w/ stromatolite. The second is Lily Pad jasper (really a rhyolite) from near Madras, Oregon
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Post by rockpickerforever on May 9, 2013 17:46:53 GMT -5
Thanks, R2D! I knew I'd seen it somewhere, just couldn't remember what the heck it was. And agree that it's a rhyolite. Jean
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on May 9, 2013 19:40:12 GMT -5
lily pad jasper/rhyolite. nice! thnaks R2D
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Sabre52
Cave Dweller
Me and my gal, Rosie
Member since August 2005
Posts: 20,466
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Post by Sabre52 on May 9, 2013 20:21:37 GMT -5
The last example appears to be orbicular rhyolite. That is a really pretty example of lily pad!.....Mel
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