Today it’s easy to buy just about anything by touching a few keystrokes. In an amazingly short time, a package from Amazon or another company will arrive. However, it wasn’t always easy to acquire important things. Consider obsidian.
Obsidian is a fascinating rock always formed by volcanic action. It’s essentially natural glass, and a chunk of it shimmers in the hand. It’s usually black but can be brown, tan, green, blue, red, orange or yellow depending on the minerals within it.
Although obsidian is found in natural deposits scattered around the world, in the United States it occurs mostly in Arizona, California, Idaho, Nevada, and Oregon with smaller deposits in New Mexico, Washington, and Wyoming. An entire obsidian hillside is easy to see from the road in Yellowstone National Park just south of Mammoth.