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Showing results for tags 'tan'.
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Sorry, just getting used to this. Anyway, has anyone ever seen anything like this before? It appears to have been originally cylindrical, with horizontal (raised and dipped) ridging on the outside (as you go vertically), and strange branching internally (the largest of which starts at the center, proceeding toward the outside into smaller, multiple branches. One end is shown. Can send other end - similar - in new post, if necessary.) The item seems to be covered/white-washed with something I originally thought might be calcium carbonate, but it doesn't fizz in vinegar - some type of chalk, maybe? The fill-in matrix appears to be a very fine-grained, dense shale, reminiscent of the stuff I usually see in marine deposits. There doesn't appear to be any structure, segmentation, or grain/rings (that I would expect to see in a plant root), other than the cylindrical form, internal branching and external ribbing. Unfortunately, this specimen is part of a collection of items given to me by an acquaintance (Mike) I am no longer in touch with. I shall refer to him in later posts, as he gave me several things which either were never labeled, or became long ago detached from their ID and provenience tags. The item I show you here is such a specimen. I took pictures of it with my tablet, and I hope they are OK to post here. I apologize in advance if they need cropping, as I don't know how to do that, yet. ANYONE please correct me, should I make any errors in my presentation. This is the only way in which I can learn and improve.
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- dense sandstone with
- ing on the outsi
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Found on shoreline on Grand Traverse Bay, East Arm, @45th parallel. Interesting pattern of dimples within a small bowl like depression. The stone is a light tan color. The lighting on image was adjusted to bring out the dimple pattern more clearly.
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I found a number of probable bone fragments near Venice Beach Florida. This one had a little more shape to it, some color variation and a slightly more smooth texture. Can anyone identify it or does it go in the pile of unidentifiable mammal bone fragments? Any suggestions are appreciated.