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  • Rocks & Minerals : Properties of Basalt Stones

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  • Interesting Basalt Facts

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  • What Makes Things Alkali? | Acids, Bases & Alkali's | Chemistry | FuseSchool

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  • Kilauea Eruption Update: Lava Lake Dome Fountain Emerges (Jan. 5, 2021)

    YouTube 03:46

Basalt is a mafic extrusive igneous rock formed from the rapid cooling of magnesium-rich and iron-rich lava exposed at or very near the surface of a terrestrial planet or a moon. More than 90% of all volcanic rock on Earth is basalt. Basalt lava has a low viscosity, due to its low silica content, resulting in rapid lava flows that can spread over great areas before cooling and solidification. Flood basalt describes the formation in a series of lava basalt flows.

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