Red Jasper Gemstone Necklace *Free Shipping from California to USA addresses.*Tested with Presidium Gem Tester II. Tests as Quartz, not glass. (Jasper is a type of Quartz). Jasper is classified as an opaque variety of silica from the family of quartz. It can come in almost any color but most commonly as red, yellow, brown, or green. Two different Hebrew words are translated as jasper in the bible, "yash?pheh" and "iaspis." Yash?pheh was the term in Exodus 28:20 and 39:13 for describing the last or twelfth jewel in the Breastplate of Aaron, the High Priest. Red Jasper Gemstone Necklace with 1" Cross. 17.5" plus 2" extender wax rope chain in black 17.5" plus 2" extender wax rope chain in bronze with a bronze clasp 20" plus 2" extender black satin silk cord 22" plus 2" extender black satin silk cord 16" 1mm 925 tagged Sterling Silver Plated Snake Chain 18" 1mm 925 tagged Sterling Silver Plated Snake Chain 20" 1mm 925 tagged Sterling Silver Plated Snake Chain 22" 1mm 925 tagged Sterling Silver Plated Snake Chain 24" 1mm 925 tagged Sterling Silver Plated Snake Chain (description exceeds maximum possible length)