Agatized Wood.
This is a very large and heavy display specimen at 4.3 kg in weight and nearly 30 cm wide. This will make an impact statement in any home.
Large specimens like this from this location are rare and sought after globally.
Agatized wood is very glassy.
From High Peak Forrest/Hororata, Canterbury, NZ
Weight: 4435 grams = 4.43 kg very heavy and large specimen
Measurements: 297 x 145 x 87 mm deep