Turquoise Mountain Afghanistan's mountains are rich with mines of semi- precious stones such as emerald, ruby, lapis lazuli, and tourmaline. The abundance of these stones has made the cutting, polishing and faceting of gems, as well as the wearing of jewellery, an integral part of Afghan culture. Stone Type: Turquoise Afghani Shape: oval Weight: 2.49 gr Size (mm): 18 x 12 x 7 Color: Blue Origin: Afghanistan