40 Large 8mm Blue Turquoise Cube BeadsPrice is per 16 inch string of these beautiful beads each measures 8mm. Reconstituted turquoise, but colour fixed about 40 beads to the string, drilled corner to corner as picture. What is turquoise? Turquoise is a soft, opaque gemstone, formed by volcanic rock reacting to copper deposits brought by water. Colour ranges from blue green, to yellow green with grey, black or brown veining. Most non green turquoise these days is dyed. As genuine turquoise