Kingman Turquoise 7-12x10-15mm Blue/Green/Brown Graduated Rondelle Bead - 15-16 Inch R0447 known as sheet silicates because

known as sheet silicates because they form in distinct layers

An iron oxide-hydroxide mineral

and originally came from much farther away

It is one of the two distinct minerals legally classified as "jade" (along with jadeite)

Kingman Turquoise 7-12x10-15mm Blue/Green/Brown Graduated Rondelle Bead - 15-16 Inch R0447 known as sheet silicates becauseKingman turquoise, mined in the Acerbate Mountains near Kingman, Arizona, is renowned for its vibrant, intense blue hues, often featuring a black, "water web" matrix. Operated by the Colbaugh family, the mine is one of the largest and oldest producers of American turquoise, famous for producing nuggets in a wide color range from pale blue to dark green.