A fine and glassy barite specimen from a 1980s find in the Cave-in-Rock district in Illinois. Sharply bladed crystals from all sides and pretty pale blue make up this excellent full-sized thumbnail.
A fine and glassy barite specimen from a 1980s find in the Cave-in-Rock district in Illinois. Sharply bladed crystals from all sides and pretty pale blue make up this excellent full-sized thumbnail.