IMP564pr Royal Imperial Jasper Specimen Pair

This polished Royal Imperial Jasper pair shows repeated egg patterning and horizontal banding in muted shades of reddish brown to pale pink and pale mauve to dark gray.  Polished surfaces: 12.1cm x 3cm and 14cm x 3cm Approx. depth 1.75" and 1.25"  Weight: 5.4oz and 6.4oz 11.8oz together Imperial Jasper comes from central Mexico, near the border of Zacatecas and Jalisco and north of the city Guadalajara. It is known for the size of the jasper deposit, its formation in both veins and nodules, and its ability to form the "egg-patterning" found in only a handful of fine jaspers. Nodular pieces (which are highly associated with this patterning) are typically referred to as Royal Imperial Jasper. Horizontal banding, streamers, or 'spiderweb' patterns are also common. Classic colors for the material are green or dusty pink jasper, but it can skew to red, mauve purple, or even blue.