One Super Seven stone bead, ornate copper acorn top (cupule), and copper oak leaf, complete on a 20” soldered antique copper chain. Super Seven, or Sacred Stone, is a rare substance composed of seven crystals in one. Among the crystals are Amethyst, Cacoxenite, Goethite, Lepidocrocite, Rutile, Smoky Quartz, and Quartz. Complete stone acorn measures approximately 16mm. Stone measures 12mm. Size, shape and color may vary as no two stones are alike.