This polished Royal Imperial Jasper pair shows repeated egg patterning in muted blues, mauve to gray, and little hints of peach, with green around the outer edges. Each half has a rough cream outer shell with a window on the back showing green and pink jasper.
Polished surfaces:
9.7cm x 6.5cm and 9.5cm x 6.5cm
Approx. depth
1.5" and 1.25"
Weight:
11.5oz and 6.8oz
1lb 2.4oz 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.