3.5-4mm Sleeping Beauty Turquoise faceted rondelle Black Gold .925 Silver Chain by the foot is a hardy, hand created gemstone rosary chain sold by the foot. (3 quantity = 3 feet) Black Gold (Ruthenium) over .925 Sterling Silver. Authentic Sleeping Beauty Turquoise from the Sleeping Beauty mine which is a mixture of fabulous blue green and greenish-blue hues. Great Quality Turquoise on Black Gold over .925 Silver Wire Wrapped Chain.