Black Phantom Quartz 10mmThe shadowy black inclusion in Black Phantom Quartz is caused by traces of manganese or black carbon. Black Phantom Quartz is a variety of quartz consisting of visible layers of overlapping gemstone growths. The outline of the inner gemstones can be seen due to some variation in composition or mineral inclusion making the boundary between growths visible. The interior crystal layers are known as phantoms. Black Phantom Quartz are quite rare and highly