mineral
Yellow Quartz Pebble
Silicon Dioxide (SiO2)
Hardness of 7 on the Mohs scale, yellow to golden-brown color, vitreous luster, trigonal crystal system, conchoidal fracture, no true cleavage, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, yellow to golden-brown color, vitreous luster, trigonal crystal system, conchoidal fracture, no true cleavage, specific gravity of 2.65.
Formation & geological history
Formed via hydrothermal veins or igneous/metamorphic processes, later weathered, transported by water, and rounded into pebbles in riverbeds or marine environments.
Uses & applications
Used in landscaping, decorative stone, tumbling, lapidary arts, and gemstone crafting.
Geological facts
Quartz is one of the most abundant minerals on Earth's continental crust and is exceptionally resistant to weathering both chemically and physically.
Field identification & locations
Found worldwide in stream beds, beaches, and alluvial deposits. Easily identifiable by its high hardness (scratches glass) and conchoidal fracture.
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Arenite (SiO2 based)
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Limonite / Goethite (Iron Ore Mineral nodule)
FeO(OH)·nH2O / FeO(OH)
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Septarian Pebble
Septarian nodule / Concretion
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Schist
Schist
Metamorphic
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
mineral