mineral

Ocean Jasper

Orbicular Jasper (Silicon Dioxide, SiO2)

Hardness: 6.5-7 on Mohs scale; Color: Multicolored with pink, green, white, and brown; Luster: Vitreous to waxy; Crystal structure: Hexagonal (cryptocrystalline); Cleavage: None; Specific Gravity: 2.6-2.9

Hardness: 6
Color: Multicolored with pink, green, white, and brown
Luster: Vitreous to waxy

Identified May 17, 2026More mineral →

Identify your own rocks.

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

App Store Google Play

Physical properties

Formation & geological history

Formed through volcanic activity where silica-rich fluids permeate rhyolitic rock. This specific variation is found in the Marovato area of Madagascar, belonging to the Cretaceous period.

Uses & applications

Primarily used for ornamental purposes, lapidary art, jewelry, and as a popular specimen for mineral collectors and metaphysical practitioners.

Geological facts

Ocean Jasper can only be mined during low tide because its primary deposits are located along the coastline of Madagascar. It is technically more of a chalcedony than a true jasper due to its composition.

Field identification & locations

Identify by its unique orbicular (circular) patterns and banded colors. It is most famously sourced from the northwestern coast of Madagascar. Collectors look for high color contrast and distinct 'eyes'.

Other mineral specimens

See all

Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

sedimentary

Epidote

Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)

metamorphic

Nephrite Jade

Nephrite

Mineral/Rock

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety often found as a river rock)

Metamorphic Rock

Green Apatite on Albite

Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]

mineral

Epidote

Epidote - Ca2(Al2,Fe3+)3(SiO4)3(OH)

mineral