sedimentary
Heart-shaped Pebble (Limestone/Quartz)
Calcium Carbonate (CaCO3) / Silicon Dioxide (SiO2)
Hardness varies from 3 (limestone) to 7 (quartz); Color is typically white to off-white; Luster is dull to earthy; Structure is microcrystalline or amorphous due to water tumbling and weathering.
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Physical properties
Hardness varies from 3 (limestone) to 7 (quartz); Color is typically white to off-white; Luster is dull to earthy; Structure is microcrystalline or amorphous due to water tumbling and weathering.
Formation & geological history
Formed through sedimentary deposition or chemical precipitation millions of years ago, later shaped into a heart shape by natural water erosion, wave action, and river tumbling.
Uses & applications
Often kept as a natural novelty item, decorative object, or sentimental gift due to its unique shape.
Geological facts
Naturally occurring heart-shaped rocks are relatively rare finds and are popular among beachcombers and rock collectors as symbols of good luck or affection.
Field identification & locations
Found commonly in riverbeds, lakeshores, and ocean beaches where rocks undergo prolonged water tumbling. Identified by its smooth, water-worn texture and natural weathering pits.
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