igneous
Basalt with Quartz Vein
Extrusive Igneous Rock with Silicon Dioxide Vein
AI-generated identification · may be incorrectHardness 6-7 on Mohs scale. Colors range from dark gray basalt to white quartz. Fine-grained aphanitic matrix with a distinct crystalline mineral band.
Identified More igneous →
Explore Basalt with Quartz Vein in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness 6-7 on Mohs scale. Colors range from dark gray basalt to white quartz. Fine-grained aphanitic matrix with a distinct crystalline mineral band.
Formation & geological history
Formed when hydrothermal fluids rich in silica crystallized within fractures of cooled volcanic basalt lava flows.
Uses & applications
Commonly used in landscaping, road aggregate, and geological education.
Geological facts
Vein structures like this form when mineral-rich water flows through cracks deep underground and precipitates solid minerals over long periods.
Field identification & locations
Identified by contrasting light-colored mineral bands cutting through dark volcanic rock. Found globally in volcanic regions.
