sedimentary

Picture Jasper

Silicon Dioxide (SiO2) with impurities, microcrystalline quartz

Hardness of 6.5 to 7 on the Mohs scale, colors range from brown, tan, and beige with intricate banding resembling landscapes, vitreous to dull luster, cryptocrystalline structure, conchoidal fracture, specific gravity of 2.58 to 2.91.

Identified August 7, 2026More sedimentary →

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Physical properties

Formation & geological history

Formed through the deposition of silica-rich water or volcanic ash in ancient basins or cavities, which slowly hardened over millions of years into fine-grained quartz with mineral dendrites creating the scenery-like patterns.

Uses & applications

Commonly used for lapidary work, polished cabochons, decorative carvings, jewelry, and collector display specimens.

Geological facts

Picture jasper is often referred to as an Earth Mother stone, and its unique patterns are caused by trapped flow structures and mineral inclusions such as iron oxides during the silicification process.

Field identification & locations

Identified by its opaque nature, characteristic landscape-like banding or dendritic patterns in earthy tones, and hard smooth texture when polished. Found globally with notable deposits in the western United States, particularly Oregon and Idaho.

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