Obsidian Rock
Nov. 22, 2024
Obsidian - Wikipedia Obsidian | Rock, Color, Composition, & Uses | Britannica Obsidian: Igneous Rock - Pictures, Uses, Properties Raw Obsidian, Igneous Rock Specimen - Approx. 1"- Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs: Amazon.com: Industrial & Scientific Amazon.com: Extra Large Black Obsidian Rough Stones, 3-6" Natural Black Obsidian, Raw Black Obsidian Crystals (0.5-1 lb) : Health & Household Learning Geology: Obsidian | Obsidian Rock