Material: Magnesite Turquoise. 6mm – Approx 68 Beads Per Strand, With 1.0mm Hole. 10mm – Approx 40 Beads Per Strand, With 1.2mm Hole. 8mm – Approx 50 Beads Per Strand, With 1.2mm Hole. stone loose polished strand beads precious gemstone jewerly making.