Blue Rutilated Quartz Bracelet I (10mm)Every inclusion you see inside this stone is a different mineral trapped inside quartz millions of years ago. Product Highlights: The Stone: This is quartz with blue mineral inclusions, often called blue rutilated quartz. The deep blue grey color and visible needle like structures inside each bead come from dumortierite. This is an aluminum borosilicate mineral named after French paleontologist Eugne Dumortier. Each bead is completely unique. Some are