mineral
Quartz pebble
Silicon Dioxide (SiO2)
Hardness of 7 on the Mohs scale, transparent to translucent with a vitreous to greasy luster, white or colorless, conchoidal fracture with no true cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, transparent to translucent with a vitreous to greasy luster, white or colorless, conchoidal fracture with no true cleavage.
Formation & geological history
Formed through the crystallization of magma in igneous rocks or precipitated from aqueous solutions, often weathered and rounded by water transport in sedimentary environments.
Uses & applications
Used in landscaping, aggregate, manufacturing of glass and electronics, and lapidary arts.
Geological facts
Quartz is one of the most abundant and durable minerals in the Earth's continental crust, highly resistant to both chemical and mechanical weathering.
Field identification & locations
Identified by its high hardness (scratches glass), lack of cleavage, and conchoidal fracture. Commonly found in riverbeds, beaches, and various rock formations worldwide.
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Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Soil with Mineral Detritus and Quartz Fragments
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Limonite / Goethite (Iron Ore Mineral nodule)
FeO(OH)·nH2O / FeO(OH)
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Schist
Schist
Metamorphic
Septarian Pebble
Septarian nodule / Concretion
sedimentary
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
mineral