What is basalt stone made of?

Basalts are formed when magma cools on the earth’s surface during volcanic eruptions, and basalts are also the main materials that make up the earth’s oceanic crust and the moon. At present, basalt natural stone is widely used, such as indoor and outdoor decorative stone materials, as the “cast stone” raw materials and so on. So what are the components of basalt natural stone? What features are thus formed?

Basalts are formed when magma cools on the earth’s surface during volcanic eruptions, and basalts are also the main materials that make up the earth’s oceanic crust and the moon. At present, basalt natural stone is widely used, such as indoor and outdoor decorative stone materials, as the “cast stone” raw materials and so on. So what are the components of basalt natural stone? What features are thus formed?

The main material of basalt stone has silica, SiO₂, Al₂O₃,Fe₂O₃ etc., the largest silica content, as much as forty-five percent to 50, so basalt stone hard, common color is black, more is the joint surface is more pentagon and hexagon, form a columnar joints, basaltic lithology brittle. This is the material composition of basalt stone.

The mineral composition of basalt stone consists of base feldspar and gabbro, and the secondary minerals include olivine, hornblende and black mica, etc. Therefore, the volume density of basalt stone is high and the compression strength is high.

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