Obsidian – a type of volcanic glass – can produce cutting ... knapper and archaeologist Errett Callahan, concedes that the Stone Age scalpels are not for everyone. “If it was let loose ...

Associated with the Root Chakra, black obsidian is used for grounding, stability, and a strong connection to the Earth. It ...

Some people believe that crystals, such as quartz and obsidian ... beautiful stones. But you may not know what they have to offer — if anything. There are several different types of crystals.