sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and transparent to translucent white color.
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Physical properties
Hardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and transparent to translucent white color.
Formation & geological history
Formed through the mechanical weathering and river transport of parent igneous or metamorphic rocks over millions of years.
Uses & applications
Used in landscaping, decorative gravel, abrasive manufacture, and glassmaking.
Geological facts
Quartz is one of the most abundant and durable minerals on Earth's continental crust.
Field identification & locations
Easily identified by its high hardness, inability to be scratched by steel, and resistance to chemical weathering.
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Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
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Sandstone or Siltstone
Arenite (if sandstone)
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Sandstone
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Shale
Shale (clastic sedimentary rock)
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Shale (or Mudstone/Siltstone)
Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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