mineral

Ocean Jasper

Silicon Dioxide (SiO2) microcrystalline quartz aggregate with inclusions

AI-generated identification · may be incorrect

Hardness: 6.5-7 on Mohs scale; Color: Pink, white, green, and cream multi-colored patterns; Luster: Vitreous to dull; Crystal Structure: Trigonal (microcrystalline/chalcedony); Cleavage: None; Specific Gravity: 2.58-2.91

Hardness: 6
Color: Pink, white, green, and cream multi-colored patterns
Luster: Vitreous to dull

Identified August 3, 2026More mineral →

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Physical properties

Formation & geological history

Formed in volcanic conditions, specifically as silica-rich hydrothermal solutions filling cavities and spherulites in rhyolitic lava flows. Cretaceous period origin.

Uses & applications

Used primarily for ornamental carvings, tumbled stones, polished display pieces, and jewelry.

Geological facts

Ocean Jasper is exceptionally rare because it can only be collected from a specific remote coastal location in Madagascar at low tide.

Field identification & locations

Easily identified by its distinctive orbicular patterns consisting of spherical or multi-colored circular growths within the matrix. Found primarily along the northwest coast of Madagascar.