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Post by rockjunquie on Sept 15, 2020 12:02:42 GMT -5
The last 2 groups look like imposters. The first looks a lot like stefoinite and the other looks like AZ rainbow wood. Cool!
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RWA3006
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Post by RWA3006 on Sept 15, 2020 12:20:24 GMT -5
Haha, yep they sure do don't they. When I get home from work I ought to photo the back sides of them and then it becomes apparent they came from deep within the hideous bowels of some ancient beast.
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Post by stephan on Sept 16, 2020 11:43:11 GMT -5
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jamesp
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Post by jamesp on Sept 16, 2020 17:50:33 GMT -5
Simply amazing. poor abused silica
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Post by mohs on Sept 16, 2020 18:42:18 GMT -5
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jamesp
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Post by jamesp on Sept 17, 2020 2:06:45 GMT -5
"I prefer my specimens to range from walnut size to cantaloupe size."
Gotta love this thread.
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RWA3006
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Post by RWA3006 on Sept 17, 2020 8:32:12 GMT -5
"I prefer my specimens to range from walnut size to cantaloupe size." Gotta love this thread. Haha, LOL. And rugged, gnarly exteriors too. Lots of character.
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jamesp
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Post by jamesp on Sept 17, 2020 20:07:28 GMT -5
"I prefer my specimens to range from walnut size to cantaloupe size." Gotta love this thread. Haha, LOL. And rugged, gnarly exteriors too. Lots of character. Ya gotta be my rock hero RWA3006.
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RWA3006
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Post by RWA3006 on Sept 17, 2020 20:17:45 GMT -5
OK folks, I apologize in advance in case anyone gets traumatized, but jamesp inspired? me to share photos of some specimens with especially sporty surfaces. One can only imagine the grotesque reptilian cloacae that birthed these beauties.
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RWA3006
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Post by RWA3006 on Sept 17, 2020 20:18:21 GMT -5
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jamesp
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Post by jamesp on Sept 17, 2020 23:41:00 GMT -5
OK folks, I apologize in advance in case anyone gets traumatized, but jamesp inspired? me to share photos of some specimens with especially sporty surfaces. One can only imagine the grotesque reptilian cloacae that birthed these beauties. I should think your collecting hobby inspires all. Is coprolite considered a fossil ?
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Post by parfive on Sept 18, 2020 1:15:55 GMT -5
Wonder how big the Jurassic dung beetles were that rolled these things around?
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Post by RickB on Sept 18, 2020 5:36:40 GMT -5
RWA3006 have you ever kicked one of those gnarly looking rocks and find out that it is not a rock?
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jamesp
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Post by jamesp on Sept 18, 2020 6:52:38 GMT -5
Wonder how big the Jurassic dung beetles were that rolled these things around? Dung beetles can roll up to 10 times their weight. Male Onthophagus taurus beetles can pull 1,141 times their own body weight: the equivalent of an average person pulling six double-decker buses full of people.[12] Onthophagus taurus, the bullhorned dung beetle. Onthophagus taurus, sometimes referred to as the bullhorned dung beetle, is a small black beetle active throughout the summer months in southern Australia.
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RWA3006
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Post by RWA3006 on Sept 18, 2020 6:54:33 GMT -5
OK folks, I apologize in advance in case anyone gets traumatized, but jamesp inspired? me to share photos of some specimens with especially sporty surfaces. One can only imagine the grotesque reptilian cloacae that birthed these beauties. I should think your collecting hobby inspires all. Is coprolite considered a fossil ? James, from the literature I've read the answer is yes, they are considered to be a fossil. Years ago we attended a lecture given by a somewhat arrogant BLM paleontologist who insisted they were only agate nodules. Since then the consensus of the scientific community is they are indeed coprolite.
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RWA3006
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Post by RWA3006 on Sept 18, 2020 7:00:19 GMT -5
Wonder how big the Jurassic dung beetles were that rolled these things around? Rich, I've found what appears to be insect activity in a few specimens, but it's vague in appearance and I don't have the confidence to state that it's definitely bug related. I have read literature that claims such that was published in a master's thesis.
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RWA3006
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Post by RWA3006 on Sept 18, 2020 8:38:32 GMT -5
RWA3006 have you ever kicked one of those gnarly looking rocks and find out that it is not a rock? Not yet but it's possible because cattle sometimes graze in some of my coprolite areas. Here's a shot of a few coprolites with an old cow patty just as I found them. You can see the depression in lower left where I had just picked up a keeper.
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RWA3006
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Post by RWA3006 on Sept 18, 2020 8:38:58 GMT -5
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jamesp
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Post by jamesp on Sept 18, 2020 21:13:34 GMT -5
I should think your collecting hobby inspires all. Is coprolite considered a fossil ? James, from the literature I've read the answer is yes, they are considered to be a fossil. Years ago we attended a lecture given by a somewhat arrogant BLM paleontologist who insisted they were only agate nodules. Since then the consensus of the scientific community is they are indeed coprolite. I did not know if a fossil had to be alive at one time to be classified as a fossil, say plant or animal. In this case the production of an animal. If not mistaken petrified or silicified clay can be considered to be jasper and never knew it to be referred to as fossilized clay. may be wrong here. Just tossing definitions around since this one is in a category to it's own !
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Post by knave on Sept 18, 2020 21:51:42 GMT -5
When I called someone an old fossil didn’t realize I was calling them a piece of
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