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Olivine in Hawaiian basalt

2021 (approx.)

Detailed Description

(L) Green olivine crystals in lava from Mauna Loa’s 1868 eruption. (R) Microscope image of a single olivine crystal extracted from tephra at Kīlauea. This crystal is about 1 mm (less than 1/16 of an inch) tall.

Sources/Usage

Public Domain.

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