mineral

Ocean Jasper

Silicon Dioxide (SiO2) with iron and other mineral inclusions

Hardness: 6.5-7 (Mohs); Color: Multicolored with circular orb patterns (green, brown, pink, yellow); Luster: Vitreous to waxy; Crystal Structure: Trigonal (microcrystalline quartz)

Hardness: 6
Luster: Vitreous to waxy

Identified June 15, 2026More mineral →

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Physical properties

Hardness: 6.5-7 (Mohs); Color: Multicolored with circular orb patterns (green, brown, pink, yellow); Luster: Vitreous to waxy; Crystal Structure: Trigonal (microcrystalline quartz)

Formation & geological history

Formed as a result of rhythmic precipitation of silica around a nucleus within volcanic flows, specifically within the rhyolite of northwestern Madagascar. Primarily Cretaceous in age.

Uses & applications

Used primarily in lapidary work for jewelry, decorative carvings, and as a popular metaphysical or collector's specimen.

Geological facts

Ocean Jasper is exceptionally rare because it is only found along the coast of Madagascar and can only be mined during low tide. The original vein discovered in the late 1990s is largely exhausted.

Field identification & locations

Identify by the presence of 'orbs' or eye-like circular patterns and its high silica hardness. It is typically found near tidal zones in the Marovato area of Madagascar.

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