Image: Basalt

Basalt

Basalt (11 cm x 10 cm), 2 km south of Luddenham, Liverpool District, New South Wales.

Photographer:
Stuart Humphreys
Rights:
© Australian Museum

Notes

Basalt is the most common volcanic rock on Earth. Composed of essential calcic plagioclase and pyroxene, sometimes with olivine, feldspathoids or interstitial quartz.

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Tags igneous rocks, volcanic, basalt, mineralogy, geosciences, specimen,