mineral
Quartz Nodule
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectMohs hardness of 7, vitreous luster, conchoidal fracture, and lack of cleavage. Color ranges from clear to milky white, gray, or brownish hues.
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Physical properties
Mohs hardness of 7, vitreous luster, conchoidal fracture, and lack of cleavage. Color ranges from clear to milky white, gray, or brownish hues.
Formation & geological history
Formed via hydrothermal precipitation or low-temperature groundwater deposition in cavities, often within sedimentary or igneous host rocks.
Uses & applications
Used in electronics, glassware, ornamental displays, and as a tumbling rough for lapidary work.
Geological facts
Quartz is one of the most abundant minerals in Earth's continental crust and exhibits strong piezoelectric properties.
Field identification & locations
Identify by its hardness (scratches glass), lack of cleavage, and conchoidal fracture. Commonly found globally in pegmatites, veins, and river gravels.
