Blue Dumortierite Quartz Butterfly Blue Quartz is Dumorterite in Quartz Dumorterite can support Inner Calm, Confidence, Mental Acuity and Memory. It may help bring order and calm to mental confusion and stress, increasing your ability to problem solve. It is an excellent study companion. Dumortierite may be used to improve your memory and help you to see yourself, speaking your truth with improved clarity. boosting self confidence and helping improve relationships. Quartz- The Master Crystal is an Amplifier and Enhancer.