This is an awesome Aqua Tanzanite Quartz Cluster. The color is outstanding, the largest crystal has an Isis face and a past time link window, and there are rainbows. This is an exceptional cluster. (one of my favorites). Aqua Tanzanite Quartz (also called Tanzanite Aura Quartz) is created by heating the quartz in a vacuum and then adding gold and indium. The quartz bonds with the gold and indium, giving the crystal its distinctive color (which resembles the color of Tanzanite). Metaphysically, Aqua Tanzanite Quartz offers an increase to psychic abilities and awareness.