how to facet
gemstone main cabochon creation
min data

Mineral: quartz
Gem: bruneau jasper
Size: 33 mm x 42 mm
Carat: 26.8 ct
Cut: freeform cabochon
Origin: Idaho
General Info: Jasper is derived from the Anglo-French "jaspre", meaning "spotted stone". Jasper is usually formed from old sediments (or volcanic ash flows) that have been glued (and at times replaced) with silica.

Flow patterns of the original material are often easy to see. Many jaspers are know as picture jasper because they contain what appear to be small images of sand dunes, mountains, plains, and even sky. Since the original materials were likely cross bedded sediments, they often contain the structure they mimic.

Additional Information
Bruneau jasper is one of the procelain jaspers, meaning it takes a very high polish and is very fine grained. It is sought after for it's orb patterns with concentric orbs being the most desired. Is usually tan to warm brown.