
Obsidian Sphere $5.00
Explore the fascinating properties of volcanic glass with this Obsidian Sphere. Formed when molten lava cools rapidly without crystal growth, obsidian is an igneous rock known for its sharp edges and smooth, glassy surface. Each polished sphere reveals the unique textures and natural fractures that tell the story of its fiery origin. At about 1 inch in diameter, this sphere is perfect for geology enthusiasts, science educators, or anyone curious about Earth's dynamic processes. Why you'll love this• Each sphere is unique, showcasing natural variations in color and pattern caused by rapid cooling and volcanic activity• Smooth, polished surface highlights obsidian’s glass-like structure and fracture patterns• Compact size fits easily into collections or serves as a tactile tool for hands-on geology learning• Provides an opportunity to study igneous rock formation and volcanic processes up close• Encourages curiosity about Earth's geology and the science behind rock formation Bring a piec