Mineral
Quartz
SiO2 (Silicon Dioxide)
AI-generated identification · may be incorrectHardness 7, typically colorless to white, vitreous luster, conchoidal fracture, lacks cleavage.
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Physical properties
Hardness 7, typically colorless to white, vitreous luster, conchoidal fracture, lacks cleavage.
Formation & geological history
Forms in a wide range of geological environments, including igneous, metamorphic, and sedimentary rocks, often precipitating from silica-rich fluids.
Uses & applications
Used in glassmaking, electronics (oscillators), as an abrasive, and in jewelry or collecting.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust, coming in many varieties like amethyst, citrine, and rose quartz.
Field identification & locations
Identify by its hardness (scratches glass), lack of cleavage, and conchoidal fracture; commonly found worldwide in various rock types.
