Dumortierite Quartz is a type of quartz that contains inclusions of dumortierite, a blue mineral. The blue color can vary from light to dark blue, and the inclusions often form fibrous or needle-like structures within the quartz crystals. It is found in only a few places in the world, including Brazil, Namibia, and Madagascar. Dumortierite quartz is used in jewelry and other decorative objects.
