Chalk turquoise go-go style pendant necklace with round turquoise and nugget and cube shaped Mother of Pearl beads. 18 inch necklace has Tibetan silver bead accents and toggle clasp. Pendant bail is stainless steel. Lovely summer piece. Gem note Chalk turquoise is a form of natural turquoise with the same chemical composition as turquoise with one exception, it does not contain copper, the element that causes the blue color of naturally occurring blue turquoise. Chalk turquoise is stabilized and dyed for use in jewelry making.