More than 20 of them have turned up across the American West (and one in Ohio). They have been unearthed by construction crews, artifact collectors, and in one case by a man hand-digging an ...

Blade cores provided a portable source of stone or obsidian for manufacturing different kinds of tools by flaking off pieces from the core. The basis of many Upper Paleolithic tool forms from both ...

Black Tourmaline: Like obsidian, black tourmaline is a powerful protective stone. Combining these two stones can create a potent shield against negativity, psychic attacks, and electromagnetic ...