When I first started carving stone I hoarded a lot of things - one of them was a bag of Quantum Quattro tumbled pieces from Namibia, Africa. Quantum Quattro is a trade name for this conglomerations of Malachite, Dioptase, Chrysocolla and Shattuckite usually in a Smoky Quartz matrix. This combination is rare and seems to only come from Namibia as far as I am aware. Drilled with just over a 2mm hole, this pendant comes with an adjustable black cotton cord.
Crystal shown in the pictures is the one you will receive.