igneous
Quartz-veined rock
Silicate rock with quartz vein (SiO2)
AI-generated identification · may be incorrectHardness of 7 on Mohs scale for quartz veins; variable color from gray to green with white quartz banding; vitreous to dull luster; conchoidal fracture.
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Physical properties
Hardness of 7 on Mohs scale for quartz veins; variable color from gray to green with white quartz banding; vitreous to dull luster; conchoidal fracture.
Formation & geological history
Formed by hydrothermal fluids depositing silica into fractures within host rock, occurring over millions of years.
Uses & applications
Used primarily as decorative landscape gravel, in lapidary work, or as a geological specimen for collectors.
Geological facts
Quartz veins are common conduits for mineralizing fluids, frequently hosting deposits of gold and other valuable ore minerals.
Field identification & locations
Easily identified in the field by contrasting white silica veins cutting through darker host rock; widely distributed globally in metamorphic and igneous terrains.
