Frosted Natural African Turquoise(Jasper) Round Beads Strands, Size: African Turquoise(Jasper) Round Beads Strands: about 6mm in diameter, hole: 1mm; about 63pcs/strand, 15.5 inch, 126pcs; Plastic Bead Containers: about 7.4x7.2x1.7cm, 1pc.â African Turquoise is a jasper stone that is mined in Africa. This stone is called African Turquoise as it rich blue-green color and has the similar matrix pattern.