sedimentary
Sandstone (Heart-shaped pebble)
Sedimentary Quartz Sandstone
Hardness of 6 to 7 on the Mohs scale, predominantly brown or reddish-brown color, dull to vitreous luster, clastic texture composed mostly of quartz grains, specific gravity of 2.2 to 2.8.
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Physical properties
Hardness of 6 to 7 on the Mohs scale, predominantly brown or reddish-brown color, dull to vitreous luster, clastic texture composed mostly of quartz grains, specific gravity of 2.2 to 2.8.
Formation & geological history
Formed from the accumulation, compaction, and cementation of mineral particles or rock fragments, predominantly quartz sand, in environments such as deserts, rivers, and beaches over millions of years.
Uses & applications
Commonly used in construction, as building stone, paving material, and in landscaping. Unique shapes like this are often collected as decorative or sentimental items.
Geological facts
Natural weathering and water tumbling can occasionally shape rocks into symmetrical forms like hearts, making them popular finds for beachcombers and rockhounds.
Field identification & locations
Easily identified by its gritty texture and visible sand grains. Found globally in sedimentary basins, riverbeds, and coastlines.
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