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"Specimen below was found near Rocky Mountain, N.C. in 1935.
Owner thought it was a meteorite and tried selling it on ebay. (white specks are paint)
Elton Jones writes:
On initial look..this does look like a rusty iron in the Campo/CD class
however since it broke in half it is obviously not. The Piedmont of
The Carolinas and Georgia are common with this kind of material.
Near as I can tell it is a iron cemented (limonite) sand-bearing liner of
a a hydro-thermal /vuggy fracture through bedrock within what was either
an organic limestone that has completely weathered away leaving the
casting--or these are castings from organic material which was buried in
loosely consolidated sand. I have found them either way including a few
tree branches and fossil cones replaced by this mineral combo. I just
found some in Virginia that was so realistic looking that I was sure [ it ]
could be a meteorite. The iron content was so high that it rang like an
iron and so hard that my hammer left a metallic mark! Apparently
sometime in the middle mesozoic there was a sudden rise in oxygen which
precipitated iron out of the water. The iron acted like a cement and
some of this material is very resistant to breaking. Some on the other
hand is very friable and crumbles in one's hand.
I have several samples and some even have relic micro crystals. The
limonite can also take the form of red and yellow ocher, which the
Indian's powdered and used for pigment.
The specimen here is typical of the shapes that can be found.
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