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Found 11 results

  1. We found a very unusual rock or fossil in a load of bull rocks and I'm wondering if any of you can offer any insight. There are lots of limestone deposits, caves and fossils in our area, but this specimen was in a load of bull rocks used for landscaping, so probably from somewhere in central Texas. It's about 15 CM long by 5 cm wide by 2 cm thick and is oddly structured. There are various layers that look biological in origin to me. The surface I'll call the 'top' resembled onyx in color and translucence with a 'bubbled' surface similar to a piece of bacon. In some areas, this layer appears to have been worn through. This layer looks like what I'd imagine 'fossilized fat' to look like. Then come several layers of various colors (buff, tan, reddish) and thicknesses (2 - 4 mm) that appear to have a cellular structure, with tiny walls and pockets. These remind me of gills on a crab or lobster or perhaps petrified wood. The surface I call the bottom resembles our area's limestone but is rough and pock-marked. Any ideas?
  2. EscarpmentMary

    Geological Time Question

    The weather is turning here in Ontario Canada, leaves are raked, stuff is stored safely away, waiting for the lake effect snow. Went for a walk along the lake and well couldn’t resist this rock. Here is my question: In geological time, what do you all think is the top and what is the bottom? Is the limestone newer or older than the layered what I believe is silicate. Every rock tells me a story, I see the impact of multi cell animals, and what I believe is the heavy tidal action of the Silurian sea because of heavy gravity interaction of earth and moon, cephalopods, bivalves, …….!!
  3. TechTester

    Texas Gulf Coast Beach Find

    At first I thought it was petrified wood but it has some odd molar like shapes another side I've never seen before in a tree or in petrified wood. Found washed up on the beach at Matagorda Island, Texas, near the lighthouse. It feels very heavy for it's size like the density of petrified wood.
  4. Lone Hunter

    It's very pretty whatever it is..

    Picked from mix of QT, QAL, and Eagle Ford gravels. I love calcite but it can be deceiving, not sure if this was replacement of something or naturally formed structure, appears to be fossilized something. Curious about the red, mineral staining maybe? Last pic is view from above.
  5. What kind of layers are these in East Tennessee very fine paper thin black stone, lots of natural right angles and mixed egg shapes and ovals seem to be found in them. 20 feet Above these layers are thicker gray limestone with corals and crinoids Does anyone know the story of these layers
  6. Jackmandu

    Fossil or erosion?

    Found this today while out rock-hounding...not really sure if it is a fossil or just an eroded piece of limestone (I believe)?
  7. Hi All, I recently purchased this Glossopteris slab. It appears to be made up of multiple layers showing fragments of leaves Would any further prep reveal more detail or possibly entire leaves? Thanks
  8. Dino1019

    Charleston, SC

    We found this today on the beach. Any ideas of what this might be? Thank you!
  9. Latte42

    Can anyone identify this object?

    This is the size of a 50 cent piece for those familiar with that coin. It measures about 2 inches in diameter - it's a bit oblong however. I can supply more photos if needed. Someone might identify this immediately with just the 2 photos. This was found recently along the Atlantic Coast shoreline along an outgoing tide after a storm. It's the shape of a top of a mushroom, even with the bottom having an a small indent in center. It's texture feels like pumice, and is light in weight like pumice. As you can see the tissue (or sheet) layers upon layers of holes that create this round small structure. Thank you.
  10. I_gotta_rock

    Don't Linger!

    From the album: Calvert Cliffs

    This view of the cliffs in Calvert County, Maryland is gorgeous. I don't often see quite the vivid color range in this formation. I didn't linger, though, and I was wading in the bay to keep my distance. See those trees at the top of the 40 ft +/- cliff? The ones with the roots hanging over the edge? Those aren't going to be at the top of the cliff for long. At this point, they are probably only still there out of sheer habit. We did her a landslide the night we arrived, the spoils of which are in some of the following images in this album. I was on a trip earlier in the year, at a different part of the cliffs, when someone did get hit in the head by a bit of falling clay. Lucky for her, it wasn't a big chunk or from very high up. She *only* had a concussion. If ever you are close to the cliffs like this, watch and listen to where you are at all times. Run like crazy if you hear anything falling! DO NOT TOUCH THE CLIFFS! DO NOT STAND ON THE TOP EDGE OF THE CLIFFS! That prize Meg tooth isn't worth your life.
  11. From the album: Irish Coral algae and Bryozoan

    More detailed view of the top view of a rock found on a beach Co Waterford Ireland. Has been soaked in vinegar and slowly showing up more details. Area is know for mid-Ordovician fossils dating from around 470 million years ago. The rock is13*10*6 cm. Very heavy and seems to be more like a fine compacted ash than limestone. There is a shell in it that can be seen on the left, corals and outlines can also be made out. Quote from GSI for area "The mix of useful animal groups makes this an important site for biostratigraphical correlation within the Ordovician Period, both in Ireland and internationally. It is even more important because the animal species present at Tramore were biogeographically differentiated into different faunal provinces in older rocks, and the site will be very important in understanding the breakdown of the faunal provinciality within the Iapetus Ocean that once separated northwest Ireland from southeast Ireland. Tramore appears to have been a key site for the early migration of North American species into the Anglo-Welsh (and Irish) area."
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