
igneous
Small rounded pebble, likely quartz-rich stone
Indeterminate; possibly quartzite or light-colored granitoid, composed mainly of quartz and feldspar
AI-generated identification · may be incorrectPale cream, smooth and rounded from abrasion, with a dull to weakly vitreous luster; likely Mohs hardness 6–7. No visible cleavage or crystal structure can be resolved from the photograph; specific gravity is probably about 2.6–2.7.
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Physical properties
Pale cream, smooth and rounded from abrasion, with a dull to weakly vitreous luster; likely Mohs hardness 6–7. No visible cleavage or crystal structure can be resolved from the photograph; specific gravity is probably about 2.6–2.7.
Formation & geological history
Likely weathered from an igneous or metamorphic source and naturally rounded by stream, beach, or sediment transport; its geological age cannot be determined visually.
Uses & applications
Commonly used as a decorative pebble, craft material, or aquarium/landscaping stone; this small, unremarkable specimen has little gem or commercial value.
Geological facts
The uniform pale color and rounded shape are consistent with quartz-rich material, but the image is insufficient for a definitive identification.
Field identification & locations
Test with a steel knife or glass: quartzite should resist scratching glass, while softer feldspathic rock may not. Typical sources include river gravels, beaches, and weathered upland bedrock.