Biggs jasper is a variety of the mineral jasper. It is a "picture jasper" – a jasper that exhibits particular patterns and colors – and is used as an opaque gemstone. It exhibits intricate, shell- or
A piece of Biggs jasper
The stone is found near Biggs Junction, Oregon (in the background on the far side of the Columbia River).
In this piece of Biggs jasper, the border between the jasper at the bottom and the untransformed rock not reached by heat and pressure is visible.
Jasper is an opaque type of silica that comes in a variety of colors, most commonly red, yellow, brown, green, and very rarely blue. It is made mostly of very fine-grained quartz or chalcedony, with o
Biggs jasper
…Biggs jasper is a variety of the mineral jasper. It is a "picture jasper" – a jasper that exhibits particular patterns and colors – and is used as an opaque gemstone. It exhibits intricate, shell…
Movable Egyptian ring in green jasper and gold, from 664 to 322 BC or later (Late Period), the Walters Art Museum
Amulet of scarlet jasper, provenance unknown, Royal Pump Room, Harrogate
Low-relief sphinx pendant, red jasper, pearl and enamel, French, circa 1870