What is Imperial Jasper?
TOP Imperial Jasper is one of the fine jaspers on the market today. It is found over a wide area in Guadalahara, Mexico. There are many varieties and each “lot” that come into the United States has some different characteristics from previously imported material. This jasper forms as nodules and usually has a soft white chalky exterior. The colors are typically shades of pink, red, and green. Fine Jaspers are defined by the presence of a particular pattern that results from a common set of circumstances in the formation process. Not all pieces of jasper from the above areas exhibit this pattern and each type may have other patterns common or not common to the others. The pattern that is common to each deposit is referred to by several names and appears in the surface of the rock as a series of overlapping oval shapes. These shapes have been called “eggs”, rolls”, orbs”, “Bruneau Pattern”, and “orbicular” pattern to name a few. Picture Jaspers and other categories of jasper do not exhib
