SERP-B-01 Origin: Peru Grade: A Dimensions: 10-20g - Approximately 20-30mm 20-30g - Approximately 30-40mm 30-40g - Approximately 40-50mm Origin: Peru Grade: A = good Raw serpentine from Peru Sold individually. Weight from 10-20g to 30-40g Colors and shapes may vary from one stone to another. Serpentine belongs to the mineral family of the silicate group, specifically the phyllosilicate subgroup. This family contains more than 20 members or polymorphs found in metamorphic rocks rich in iron hydroxides, aluminum, manganese, nickel, zinc, calcium, and/or magnesium. Their olive coloration and flexible, scaly appearance are the origin of the name of their parent rocks, the ophidian rocks, from the Greek ophidis, meaning serpent, and their mineral form, serpentine, from the Latin serpentinus, meaning stone serpent. Astrological signs: Pisces Chakra classification: Throat chakra