Liesegang Rings in Rocks: Formation, Iron Oxide Bands, and Natural Patterns
Some rocks contain extraordinary patterns of red, orange, yellow, and brown rings that look like tree rings, flowing waves, or abstract paintings. These colorful...
Orbicular Granite
Formation, Texture, Composition, and Geological SignificanceAt first glance, orbicular granite looks almost too unusual to be natural. Its surface contains rounded, often eye-like patterns...