My late Grandfather had this in a basket with arrowheads he'd found over the years. Reminds me of a bell pepper starting to rot and collapse, especially with the flat bottom.
That's what I was guessing. Maybe, because it almost looks like the inside was drilled, or cut away somehow.Mastodon Molar or an odd empty geode?
Part of the inside is missing, but it looks like natural phenomena.That's what I was guessing. Maybe, because it almost looks like the inside was drilled, or cut away somehow.
Or their version of aluminum foil.Indian crack pipe
It makes an interesting paperweight.It's just a water tumbled piece of chert
X2It's just a water tumbled piece of chert