Picture Jasper

Physical Properties

Hardness: 6.5-7 (Mohs). Color: Cream, tan, brown, black, and red banding. Luster: Vitreous to waxy. Crystal Structure: Hexagonal (Microcrystalline). Cleavage: None (Conchoidal fracture). Specific Gravity: 2.6-2.7.

Formation & Geological History

Formed from silica-rich petrified mud or volcanic ash flows. As the silica hardened into jasper, movement and fluid percolation created the distinctive 'landscape' or 'picture' patterns through the deposition of iron oxide minerals and clays.

Uses & Applications

Primarily used in lapidary arts, jewelry (cabochons), interior decoration, and as a popular specimen for collectors due to its scenic patterns.

Geological Facts

Picture Jasper is often called the 'Global Awareness' stone because its patterns can look like landscapes from all over the world. It is a form of chalcedony that is specifically opaque.

Field Identification & Locations

Identify by its opaque, colorful banding and ability to take a high polish. It will scratch glass but cannot be scratched by a steel pocketknife. Commonly found in the Pacific Northwest of the USA, especially Oregon.

Identified on: 4/21/2026

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