Rock Identifier
Ocean Jasper (Silicon Dioxide (Microcrystalline Quartz, SiO2)) — mineral
mineral

Ocean Jasper

Silicon Dioxide (Microcrystalline Quartz, SiO2)

AI-generated identification · may be incorrect

Mohs hardness of 6.5 to 7, vitreous to dull luster, and opaque transparency. Displays characteristic orbicular patterns in green, pink, white, and brown.

Identified More mineral →
Explore Ocean Jasper in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

Physical properties

Mohs hardness of 6.5 to 7, vitreous to dull luster, and opaque transparency. Displays characteristic orbicular patterns in green, pink, white, and brown.

Formation & geological history

Formed through the cooling and hardening of silica-rich volcanic lava and hydrothermal fluids in gas vesicles. Found exclusively along the coast of Madagascar.

Uses & applications

Primarily used for lapidary arts, decorative carved spheres, and collector display pieces.

Geological facts

This rare variety of jasper is mined only in a remote coastal area of Madagascar, often accessible only at low tide.

Field identification & locations

Easily identified by its distinctive multicolored orbicular or spherical inclusions within a microcrystalline quartz matrix.