Hand-carved arrowheads and jagged spears made of obsidian, a sharp rock formed by volcanic magma, are remnants of vast ...

Volcanic glass has been discovered at more than 500 archaeological sites in western Canada. Geologically-speaking, it shouldn ...

Snowflake obsidian is a form of volcanic glass that features white or grayish ... the inner workings of human life or the emotions of people. While it may not possess otherworldly powers ...