Although African Turquoise is called Turquoise, it is actually not turquoise in the traditional sense. Rather, it is a form of jasper that is mined in Africa. The matrix of the stone with its beautiful black and brown webs and spots is a beautiful companion for the more traditional turquoise.
Since it is a form of Jasper, and Jasper is a form of Chalcedony, then African Turquoise is technically a form of chalcedony. African Jasper contains crystal quartz which gives it an opaque appearance.
It also has other inclusions, such as copper and iron, that contribute to its beautiful mottled color palette. Because of its makeup and inclusions, African turquoise is actually a much harder stone than traditional turquoise, which makes it great for beaded bracelets that may get abused in day-to-day wear. It has the hardness of 6.5 to 7 on the Mohs scale.
Metaphysically, African Turquoise is an evolutionary stone – it is supposed to help you to bring about necessary change in your life and open you up to what the future will hold for you. It helps you to balance your past and your future as you continue to become your true self. It is a stone of the Third Eye Chakra, opening your eyes and mind to new ideas and your true purpose. Carry it with you, and you will feel its reassurance as you explore new opportunities.