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Beach at Makauwahi Cave, Kauai, Hawaii

Beach at Makauwahi Cave, Kauai, Hawaii

This is sand collected from a strandline on the beach near Makauwahi Cave. The sand is a mixture of volcanic, shell, and limestone grains. The strandline is enriched in olivines and magnetite crystals from the igneous rock exposed in this area. The scale on the left is marked in millimeters.

Macro Photograph


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Blay, Chuck and Robert Siemers, KAUAI'S GEOLOGIC HISTORY, A SIMPLIFIED GUIDE, TEOK Investigations, 2004 (ISBN 0-9744723-0-1)