While filming another video, I found some small chips of obsidian by accident. When I looked behind me, there was an extinct volcano, its sides slathered with obsidian. Rockhounding ensued!

Diary of A Mad Scientist
While filming another video, I found some small chips of obsidian by accident. When I looked behind me, there was an extinct volcano, its sides slathered with obsidian. Rockhounding ensued!