Obsidian:The Volcanic Wonder

Obsidian: The Volcanic Wonder by Rumble's Workspace

OUTLINE:

00:00:00 The Origin of Obsidian
00:00:19 The Power of Volcanic Eruptions
00:00:33 Obsidian in Ancient Civilizations
00:00:51 The Allure of Obsidian Today
00:01:07 Conclusion and Call to Action