Forsterite

Hawaii, USA

Field of view: 3 mm. Forsterite, olivine sand. Dispated forsterite crystals were concentrated by waves at a beach from weathered tholeiitic basalt of a hotspot volcano.

Other localities

List of Japanese forsterite localities

Hachijo Island (Placer, Olivine Sand)
Hawaii (Placer, Olivine Sand)
Lake Kuttara (Basaltic andesite, Granular)
Usami (Andesite, Granular)
Hayama Mine (Peridotite, Granular)