This is a piece of rough Dinosaur Bone, sliced on one end. I had this listing all done when I happened to notice a small cavity on the rough, uncut end and I realized it's a Quartz crystal (roughly measuring apx 5mm long)! It's visible in the top left area of the 2nd and 3rd photos, with an extreme close-up in #4. Aside from the gemstone, it has dark red coloring with some charcoal as well. It is much brighter in the light than it looks in-hand (notice the color variety in the various photos). Some cellular structure is visible. It measures 2 7/8" x 2" on the sliced face, and lays or stands (on either end) up to 2 1/2". Its weight is 12.7 ounces, or 360 grams. While someone may choose to create slabs and cabochons from this piece, I believe it is a wonderful collector specimen with that crystal!
U.S. shipping cost: $8.95
Dinosaur Bone Rough Item# 5693 Price: $55.00
This slab is a slice of Dinosaur Dung, called 'Coprolite' (coprolite comes from two Greek words that basically mean 'dung' and 'stone'). You can see by the photos that it has a number of fractures, so doubtful the buyer could get anything by a few small cabs of out this one; carefully polishing it as a display would probably be ok. But very neat piece unpolished as it is. It measures 4 1/4" x 2 1/4" x just over 6 mm thick, and weighs 81 grams or 2.8 ounces.
U.S. shipping cost: $8.95
Coprolite Slab Item# 5262 Price: $8.00