igneous
Vesicular Basalt
Vesicular Basalt
AI-generated identification · may be incorrectHardness of 5-6 on the Mohs scale, reddish-brown to dark gray color, dull luster, vesicular texture due to trapped gas bubbles, high specific gravity.
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Physical properties
Hardness of 5-6 on the Mohs scale, reddish-brown to dark gray color, dull luster, vesicular texture due to trapped gas bubbles, high specific gravity.
Formation & geological history
Formed from the rapid cooling of lava flows, often associated with volcanic activity. Gas bubbles become trapped in the cooling lava, creating the vesicular texture.
Uses & applications
Commonly used in construction, road base, and as aggregate. Also used in landscaping and aquariums.
Geological facts
The reddish color is often due to the oxidation of iron minerals within the basalt. Vesicular basalt is common in volcanic regions worldwide.
Field identification & locations
Identify by its dark color, vesicular texture (pitted surface), and relatively high density. Found in areas of past or present volcanic activity.
