sedimentary
Water-worn Pebble
Unidentified Rock Type (Likely Basalt or Graywacke)
AI-generated identification · may be incorrectSmooth, rounded surface, dark gray color, opaque, fine-grained texture with small pits or vesicles
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Physical properties
Smooth, rounded surface, dark gray color, opaque, fine-grained texture with small pits or vesicles
Formation & geological history
Formed by mechanical weathering and water erosion in a riverbed or on a beach.
Uses & applications
Decorative use, landscaping, crafts.
Geological facts
Its curved, somewhat banana-like shape is unusual for a typical pebble, resulting from specific patterns of wear.
Field identification & locations
Commonly found in streambeds, rivers, and beaches; identified by its smooth, water-worn texture.
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