sedimentary
Quartz Breccia
Brecciated Quartz
AI-generated identification · may be incorrectHardness 7 on the Mohs scale, multicolored with brown and yellow tones, vitreous luster, amorphous crystal aggregate structure, specific gravity 2.65.
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Physical properties
Hardness 7 on the Mohs scale, multicolored with brown and yellow tones, vitreous luster, amorphous crystal aggregate structure, specific gravity 2.65.
Formation & geological history
Formed through tectonic fracturing and subsequent cementation of quartz fragments by mineral-rich hydrothermal fluids.
Uses & applications
Used primarily in lapidary arts, decorative cabochons, and as a specimen for rock and mineral collectors.
Geological facts
Breccia rocks act as natural geological archives, preserving evidence of ancient fault movements and seismic activity.
Field identification & locations
Identify by angular rock fragments cemented in a fine-grained matrix; commonly found in fault zones and hydrothermal veins.
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