Grey/Blue Rutilated Quartz Cube Bracelet I (8mm)Every needle you see inside these beads is a separate crystal, sealed inside quartz as both minerals formed together underground. Product Highlights: The Stone: Rutilated quartz in faceted cube beads. Each bead is clear grey blue quartz threaded with fine, dark needles of black rutile. The needles run at different angles through every bead, creating patterns that look like veins of lightning frozen in glass. No two beads carry the same arrangement.