sedimentary

Picture Jasper

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness: 6.5-7 (Mohs scale); Color: Tan, brown, or ivory with landscape-like patterns; Luster: Vitreous to dull; Crystal structure: Trigonal (microcrystalline); Cleavage: None; Specific Gravity: 2.58-2.91

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

Identified March 9, 2026More sedimentary →

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Physical properties

Formation & geological history

Formed from the petrification of mud or silica-rich sediments. The characteristic 'picture' patterns are caused by the infiltration of iron oxides (creating browns/reds) and manganese (creating black dendritic patterns) into the silicate during formation.

Uses & applications

Predominantly used as a gemstone for cabochons, beads, and decorative carvings. It is popular in the metaphysical community and used frequently in lapidary work for its unique natural artwork.

Geological facts

Many of the world's most famous specimens, such as Biggs Jasper or Deschutes Jasper, are found in the Pacific Northwest of the United States. No two pieces are exactly alike, often mimicking deserts, mountains, or tree scenes.

Field identification & locations

Identify in the field by its opaque nature, smooth conchoidal fracture, and distinct banded or 'scenic' coloration. It is a variety of chalcedony that can be found in sedimentary deposits or as cavity fillings in volcanic rock.