In the beginning: Mount Ararat
The stripes form random designs that are visible in transparency.
Several Armenian sites are mined. The most recent date from the Middle Pleistocene (700,000 to 100,000 years ago) while the oldest go back to the Pliocene (4 to 2 million years). Thus the cub-ar obsidian collection contains stones typically 2 million years old!
The history of obsidian is the history of mankind. First used in the remote past for everyday objects, it slowly became a luxury, prized for its black brilliance, its rarity and its beneficial powers.