Dinosaur Gem Bone 12 ounces of rough 5.5" x 2.5" x 1" thick AGATIZED SPIDERBONE MUCH BETTER IN HAND LOTS OF BRIGHT COLORS NICE CELLS PATTERN BIG END CUT PIECE NICE HEAVY PIECE Of BONE Condition is "150 mm years old. Will be EXCELLENT NO MATTER WHAT YOU DO WITH IT.