Five square inches of moss agate slabs from Mexico. (Stock 310s) We bought quite a bit of moss agate from Mexico back in the early 70's and still have some of this colorful, good quality old stock material. The color of the moss agate slabs are predominently reds, but other colors may be greens, yellow, etc. The slabs can be used for making some nice cabochons, or saw for freeforms, or break up for interesting tumbling material. See a sample of a moss agate cabochon.