Morgan Hill Poppy Jasper, found in Santa Clara County, California, is a famous, but increasingly rare orbicular jasper with red and yellow orbs.  It is a brecciated japer, oxidized iron-rich whose cracks were filled in by other substances.  This material is no longer being mined, but occasionally pieces surface from long held collections.

Origin:  California

Dimensions: 3.25" x 2.25" and approximately 4.6 mm thick .  Weight = 45 grams. 

Shown wet.  Not polished.  Known flaws are shown as white lines in the final picture frame. This is a thin slab.