mineral

Ocean Jasper

Spherulitic Chalcedony (SiO2)

Hardness: 6.5-7 on Mohs scale; Color: Multicolored (green, yellow, pink, white, brown); Luster: Vitreous to waxy; Structure: Microcrystalline with radial 'orb' inclusions; Cleavage: None/Conchoidal fracture.

Hardness: 6
Color: Multicolored (green, yellow, pink, white, brown)
Luster: Vitreous to waxy

Identified May 28, 2026More mineral →

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Physical properties

Formation & geological history

Ocean Jasper is a rare variety of orbicular chalcedony found only on the coast of Madagascar. It formed in a volcanic environment where silicic fluids cooled and minerals crystallized in radial sprays to create the signature eye-like orbs.

Uses & applications

Primarily used for lapidary work, jewelry (beads, cabochons), and as a collector's specimen. It is highly valued in the metaphysical community.

Geological facts

The original deposit of Ocean Jasper was discovered in the late 1990s at low tide. This specific mine is now exhausted, making high-quality material from the original 'old stock' increasingly rare and valuable.

Field identification & locations

Identify by its distinctive 'orb' or 'eye' circular patterns and high polish. It is mostly found in the Analalava district of northwestern Madagascar near the sea.