sedimentary

Picture Jasper

SiO2 (Impure Microcrystalline Quartz)

AI-generated identification · may be incorrect

Hardness: 6.5-7 on Mohs scale; Color: Tan, brown, and cream with landscape-like patterns; Luster: Vitreous to waxy (when polished); Structure: Cryptocrystalline; Cleavage: None; SG: 2.58-2.91.

Hardness: 6
Color: Tan, brown, and cream with landscape-like patterns
Luster: Vitreous to waxy (when polished)

Identified July 12, 2026More sedimentary →

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Physical properties

Hardness: 6.5-7 on Mohs scale; Color: Tan, brown, and cream with landscape-like patterns; Luster: Vitreous to waxy (when polished); Structure: Cryptocrystalline; Cleavage: None; SG: 2.58-2.91.

Formation & geological history

Formed from the petrification of mud, silt, or volcanic ash flows during the Cenozoic era. The distinct 'pictures' are created by iron oxides and other impurities that seeped into the sediment during formation.

Uses & applications

Primarily used for lapidary work, jewelry (cabochons, beads), decorative carvings, and as a popular collector's specimen for its aesthetic patterns.

Geological facts

Picture Jasper is often referred to as 'Earth Mother' jasper because its patterns often resemble rolling hills or deserts. The most famous varieties come from the Biggs and Deschutes areas of Oregon.

Field identification & locations

Identify by its opaque earthy colors and scenic vein patterns. Commonly found in locations with ancient volcanic activity like the Pacific Northwest of the USA, Africa, and Brazil.