SERP-R-01 Origin: Peru Grade: A Dimensions: 05-10g - Approximately 15-25mm 10-20g - Approximately 25-35mm 20-30g - Approximately 35-45mm Origin: Peru Grade: A = good Tumbled serpentine stone from Peru Sold individually. Weight from 05-10g to 20-30g Colors and patterns may vary from one stone to another. Serpentine gets its name from the Latin "serpentinus," meaning "snake stone." It was named for its rough appearance reminiscent of snake skin. This stone has other names such as ophite or ophiolite, derived from the Greek "ophios," which literally translates to snake. Serpentine comes in various colors: from colorless to white, gray, brown, beige, black, and even blue.