RWA3006
Cave Dweller
Member since March 2009
Posts: 4,175
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Post by RWA3006 on Feb 14, 2023 7:53:00 GMT -5
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Post by agatewhisperer on Feb 15, 2023 20:43:31 GMT -5
What do you think RWA3006 ? Pewp? I bought a chunk from a rock store that said it was coprolite and slabbed it.
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RWA3006
Cave Dweller
Member since March 2009
Posts: 4,175
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Post by RWA3006 on Feb 15, 2023 21:55:59 GMT -5
What do you think RWA3006 ? Pewp? I bought a chunk from a rock store that said it was coprolite and slabbed it. I'd say there's a good chance that it is because of the profile of the exterior and the individual constituents on the inside that are divided by what appears to be agate. I've encountered quite a few specimens that have that "blotchy" looking interior. Any idea of the source locality?
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Post by agatewhisperer on Feb 15, 2023 22:08:47 GMT -5
RWA3006 no, not sure. I got it from MN lapidary supply but not sure where it came from beyond that. They had some with a darker interior with a lot of color in them, and then these which were lighter color. Anyway, I've been working on a project with these and just got done shaping and tumbling some. Achieved my life goal of polishing a turd!
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RWA3006
Cave Dweller
Member since March 2009
Posts: 4,175
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Post by RWA3006 on Feb 17, 2023 7:45:52 GMT -5
RWA3006 no, not sure. I got it from MN lapidary supply but not sure where it came from beyond that. They had some with a darker interior with a lot of color in them, and then these which were lighter color. Anyway, I've been working on a project with these and just got done shaping and tumbling some. Achieved my life goal of polishing a turd! Those are beautiful and what a nice polish you got on them. I'm not sure I've seen a turd so nicely polished because I get a lot of undercutting on most of mine.
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RWA3006
Cave Dweller
Member since March 2009
Posts: 4,175
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Post by RWA3006 on Feb 17, 2023 7:57:57 GMT -5
Here's a turd to usher us into the weekend. I tried to get the last photo at an angle to show typical undercutting I get on these guys. These specimens I have are highly agatized but they also have many little pockets of calcite in them that grinds away faster than the agate producing what we call undercutting.
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RWA3006
Cave Dweller
Member since March 2009
Posts: 4,175
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Post by RWA3006 on Feb 17, 2023 7:58:25 GMT -5
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RWA3006
Cave Dweller
Member since March 2009
Posts: 4,175
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Post by RWA3006 on Feb 21, 2023 7:57:32 GMT -5
TURD TUESDAY
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RWA3006
Cave Dweller
Member since March 2009
Posts: 4,175
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Post by RWA3006 on Feb 21, 2023 7:57:59 GMT -5
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RWA3006
Cave Dweller
Member since March 2009
Posts: 4,175
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Post by RWA3006 on Feb 21, 2023 7:58:28 GMT -5
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Post by 1dave on Feb 21, 2023 9:31:35 GMT -5
More than normal breakup/shrinkage, AND interesting (thought provoking) the way the iron is spread around.
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Post by jasoninsd on Feb 21, 2023 9:35:14 GMT -5
More than normal shrinkage, AND interesting (thought provoking) the way the iron is spread around. It's only because it was really cold outside! LOL *I resized pic to 40% LOL
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Post by hummingbirdstones on Feb 21, 2023 9:38:15 GMT -5
Randy, I noticed you changed your tagline. What a wonderful tribute to Stonemon.
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RWA3006
Cave Dweller
Member since March 2009
Posts: 4,175
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Post by RWA3006 on Feb 24, 2023 10:42:36 GMT -5
Here we have an austere little turdlet with rugged knobs and texture. I kinda like it's personality. Reminds me of Granny of the Beverly Hillbillies.
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RWA3006
Cave Dweller
Member since March 2009
Posts: 4,175
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Post by RWA3006 on Feb 24, 2023 10:43:10 GMT -5
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RWA3006
Cave Dweller
Member since March 2009
Posts: 4,175
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Post by RWA3006 on Feb 28, 2023 8:27:49 GMT -5
TURD TUESDAY This one is shot full of micro gastroliths in the form of red jasper granules. Seems they average about the size of a match head. It could be that they were incidentally ingested or deliberately. They are by far the most common gastroliths I find in coprolites from this area..
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RWA3006
Cave Dweller
Member since March 2009
Posts: 4,175
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Post by RWA3006 on Feb 28, 2023 8:28:24 GMT -5
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Post by hummingbirdstones on Feb 28, 2023 9:55:20 GMT -5
TURD TUESDAY This one is shot full of micro gastroliths in the form of red jasper granules. Seems they average about the size of a match head. It could be that they were incidentally ingested or deliberately. They are by far the most common gastroliths I find in coprolites from this area.. I think they ingested them on purpose to aid in the digestion of the fibrous vegetation they ate. Some birds today do the same thing, depending on their diet. Birds evolved from dinosaurs, so it makes sense to me.
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RWA3006
Cave Dweller
Member since March 2009
Posts: 4,175
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Post by RWA3006 on Feb 28, 2023 10:29:20 GMT -5
TURD TUESDAY This one is shot full of micro gastroliths in the form of red jasper granules. Seems they average about the size of a match head. It could be that they were incidentally ingested or deliberately. They are by far the most common gastroliths I find in coprolites from this area.. I think they ingested them on purpose to aid in the digestion of the fibrous vegetation they ate. Some birds today do the same thing, depending on their diet. Birds evolved from dinosaurs, so it makes sense to me. I think you're correct because the consistent presence of these granules in so many coprolites points towards deliberate behavior.
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Post by jasoninsd on Feb 28, 2023 10:41:01 GMT -5
Being as dinosaurs probably weren't "picky eaters" (to a point), I wonder how much of the gravel ingested could have come from dirt clinging to roots. When a plant is pulled out of the ground intact, there's generally dirt still clinging to the roots. Since the dino's couldn't shake the dirt loose, ingesting it would have been inevitable. (Thinking out loud! LOL)
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