Olivine-bearing basalt

Olivine-bearing basalt
Olivine-bearing basalt A vesicular basalt containing phenocrysts of the green mineral olivine. (Translation: a lava rock with lots of gas bubbles and crystals of a green mineral called olivine that were carried up to the surface by the liquid lava when it erupted.) Photo taken at Green Sands Beach, Hawaii. Callan Bentley

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