igneous
Andesite
Intermediate volcanic rock
AI-generated identification · may be incorrectHardness of 6 on the Mohs scale, grayish to greenish color, dull luster, aphanitic to porphyritic texture.
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Physical properties
Hardness of 6 on the Mohs scale, grayish to greenish color, dull luster, aphanitic to porphyritic texture.
Formation & geological history
Formed from the rapid cooling of intermediate lava at subduction zone volcanoes.
Uses & applications
Used in construction, aggregate, road metal, and occasionally as building stone.
Geological facts
Named after the Andes Mountains where it is very common, it forms the typical material of stratovolcanoes.
Field identification & locations
Identified by its intermediate composition between basalt and rhyolite, often containing visible plagioclase phenocrysts.
