Polished Tiger Eye TE439 crystoprase The interesting cylindrical cavities are

The interesting cylindrical cavities are all that remain of fossil belemnites which were a squid-like creature with a tapering torpedo or bullet shaped body

55 mm x 50 mm  x 17 mm

Dimensions at widest points approximately 90 mm x 50 mm x 35 mm thick

NJ434  A rough rock

Polished Tiger Eye TE439 crystoprase The interesting cylindrical cavities areTE439 Marra Mamba Tiger Eye rough rock, cut and polished on one side with a natural back. Dimensions at widest points approximately 95 mm x 75 mm x 30 mm thick. It weighs 353 grams. From the "Marra Mamba Iron Formation" near Mt. Brockman in the Pilbara region of Western Australia.