A hydrous phosphate of copper and aluminum, displaying characteristic sky-blue to greenish hues, often with matrix. Valued as a protective talisman, it's associated with strength, good fortune, and clear communication via the throat chakra.
Sky Blue, Blue-Green, Greenish-Grey, often with matrix (dark veins)
Turquoise is classified as a phosphate minerals mineral which typically crystallizes in the triclinic system. Its chemical formula is CuAl6(PO4)4(OH)8·4H2O. Common crystal habits include massive, nodular.