Fossil Petrified Palm Root Slab Lapidary Stone Slice Cut Rock Arizona Rainbow Wood This chunk of Dinosaur Bone

This chunk of Dinosaur Bone appears to have some silica and calcite present

and is of course excellent for knapping as well

but it is a fossil stromatolite

These are whole and uncut

Fossil Petrified Palm Root Slab Lapidary Stone Slice Cut Rock Arizona Rainbow Wood This chunk of Dinosaur BoneThis is a slab of Mystery Petrified Palm Root from an old stock collection. I don't know where this material was mined, but it's beautiful. It's a great specimen or collector's piece. Measurements (inches longest approx): 4. 3 x 4 x . 22 The last photo has been taken dry so that you may see any defects. The other images were taken wet to simulate polish.