Turquoise is a polycrystalline copper mineral with a sky blue to green colour, frequently containing veins of dark brown/black matrix material. Much turquoise on the market is treated to improve its colour and durability through dyeing and impregnation. Birthstone for December. Hardness: 5.5-6 (Mohs).
FLASH SALE. 15% off all gemstone beads. Use code JUNEBEADS at checkout. Ends midnight (BST) 24th June.