Picture Jasper

Physical Properties

Hardness: 6.5-7 (Mohs); Color: Tan, brown, beige, and cream with landscape-like patterns; Luster: Vitreous to dull; Crystal Structure: Microcrystalline/Cryptocrystalline (trigonal); Cleavage: None; Specific Gravity: 2.58-2.91

Formation & Geological History

Formed as a result of petrified mud or volcanic ash flows where high pressure and heat fused silica with various mineral impurities over millions of years, often during the Tertiary or Cretaceous periods.

Uses & Applications

Primarily used for lapidary work, jewelry (cabochons), interior decoration, and as a popular collector's item due to its 'scenic' aesthetic.

Geological Facts

Picture Jasper is famous for its unique dendritic and flow-like patterns that often resemble miniature desert landscapes, mountains, or forests, leading to its nickname 'The Mother Earth Rock'.

Field Identification & Locations

Identify in the field by its waxy texture when broken, high hardness (cannot be scratched by a steel knife), and characteristic earthy color banding. Found globally, with notable deposits in Oregon, USA (Biggs Jasper).

Identified on: 4/23/2026

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