Pebble
Scientific Name: N/A
Category: rock
Brief Description
A small, water-worn stone resting on a glass table.
Characteristics
Smooth, rounded edges resulting from erosion and tumbling by water; light-colored with subtle mineral speckling.
Habitat
Found globally in riverbeds, lake shores, beaches, and glacial outwashes.
When to Find It
N/A
Conservation Status
N/A
Ecological Role
Pebbles and small rocks provide micro-habitats for mosses, lichens, and small invertebrates, and contribute to sediment composition in aquatic ecosystems.
Easily Confused With
Other weathered rock fragments; distinguished by composition, hardness, and origin.
Observation Tips
Look along coastlines and riverbanks where water action naturally smooths rough stones.
Interesting Facts
The rounding of pebbles is primarily caused by attrition, where rocks collide with one another while being transported by water.