Petrified wood or sandstone?

HillBilly244

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May 4, 2013
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ToddsPoint

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Mar 2, 2018
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Todds Point, IL
Primary Interest:
Metal Detecting
Sorry, but you’re still not showing Schreger lines. Schreger lines cross at an angle. They don’t run parallel to the outside curve of the tusk. Mammoth lines cross at about 90° like this pic. African elephant lines cross at 45°.
IMG_4837.jpeg
 

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