mineral
Quartz cluster
Quartz (SiO₂), likely a drusy quartz coating on matrix
AI-generated identification · may be incorrectColorless to white, translucent crystals with a vitreous luster and hexagonal crystal structure; Mohs hardness 7, no cleavage, and specific gravity about 2.65. The small, tightly packed crystals appear to form a sparkling drusy surface.
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Physical properties
Colorless to white, translucent crystals with a vitreous luster and hexagonal crystal structure; Mohs hardness 7, no cleavage, and specific gravity about 2.65. The small, tightly packed crystals appear to form a sparkling drusy surface.
Formation & geological history
Quartz commonly crystallizes from silica-rich hydrothermal fluids or groundwater in cavities and fractures. Its age and exact formation setting cannot be determined from the image.
Uses & applications
Commonly collected as a mineral specimen and used in decorative objects and jewelry; quartz is also important in glassmaking and electronics.
Geological facts
Quartz is one of Earth’s most abundant minerals and occurs in many varieties, including amethyst, citrine, and agate.
Field identification & locations
Look for glassy luster, hardness sufficient to scratch glass, and absence of cleavage; the photo’s small crystals suggest drusy quartz. It occurs worldwide in veins, geodes, and cavities.
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