You will receive one or more specimens and an identification card.
Seventy percent of obsidian rock is made of silica.
Contains small items - Not intended for young children - Designed for ages 6 and up - Pictures are representations of what you will receive and are used for illustrative purposes only – Cards and specific excavations will vary.
Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device
choosing a selection results in a full page refresh