sedimentary

Picture Jasper

Silicon Dioxide (SiO2) with iron oxide and mineral impurities

AI-generated identification · may be incorrect

Hardness: 6.5–7 (Mohs scale); Color: Tan, brown, and ivory with landscape-like patterns; Luster: Vitreous to dull; Crystal structure: Hexagonal (microcrystalline/cryptocrystalline); Cleavage: None; Specific gravity: 2.58–2.91

Hardness: 6
Color: Tan, brown, and ivory with landscape-like patterns
Luster: Vitreous to dull

Identified March 28, 2026More sedimentary →

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Physical properties

Formation & geological history

Formed from the petrification of mud, silica-rich sediments, or volcanic ash. The unique patterns are caused by the flow of mineral-rich water (often iron or manganese) through the sediment before it fully hardens into stone. Most specimens are found in Neogene deposits (approximately 15-20 million years old).

Uses & applications

Primarily used in the lapidary arts for cabochons, beads, and decorative spheres. It is highly valued by collectors for its aesthetic 'landscape' patterns and by metaphysical practitioners who use it as a grounding stone.

Geological facts

Picture Jasper is often referred to as 'The Stone of Global Awareness'. One of the most famous varieties is 'Biggs Jasper' from Oregon, which features high-contrast 'hills and valleys' that look like desert paintings.

Field identification & locations

Identify in the field by its opaque, silicate nature and characteristic dendritic or layered brown/tan bands. Common locations include the Owyhee Mountains in Idaho and various desert regions in Oregon, USA. It is often found in nodules or large veins within volcanic ash beds.