Dino bone shows up regularly on Ebay. You can probably bid on either
rough or slabbed dino bone there. Also, if you come to the
Quartzsite Pow Wow in Quartzite, AZ you can get as much as you want.
The thing to watch for with dino bone, besides pretty color and
pattern, is how well-silicated and filled in the webbing is. You can
drag your fingernail across the surface of a dino bone slab, and if
it is well-silicated, it should just slide across, but your nail
will catch in the webbing of the lower quality stuff. This is
important because if the webbing is not well-silicated, it will
undercut and will not look so good when cabbed.
Dos Manos Jewelry