Dumortierite

Dumortierite

SCIENCE / MINERALOGY
Dumortierite is an aluminum borosilicate mineral with a complex formula commonly represented as Al₇BO₃(SiO₄)₃O₃. It crystallizes in the orthorhombic system and commonly occurs as fibrous, columnar, or massive material in blue, violet-blue, purple, pink, brown, and green tones. Fine dumortierite inclusions can also color quartz blue.

GEOLOGY & FORMATION
Dumortierite forms primarily in high-grade aluminum-rich metamorphic rocks, quartz veins, and some granitic pegmatites. It develops under high-temperature conditions and may occur with quartz, kyanite, sillimanite, corundum, tourmaline, and other aluminous minerals. Important sources include Brazil, Madagascar, Namibia, France, the United States, and several other regions.

METAPHYSICAL PROPERTIES
Dumortierite is traditionally associated with discipline, mental organization, communication, patience, and developing confidence through mastery. Its blue color links it with expression and insight, but its overall symbolism is structured rather than dreamy. It is often used for study, skill-building, and maintaining focus on long-term goals.

KEY PROPERTIES
Discipline • Focus • Communication • Patience • Confidence • Learning • Mental organization

CHAKRA: Third Eye • Throat
ELEMENT: Air • Water
ZODIAC: Leo
MOHS HARDNESS: 7–8.5

ACCURACY / TRADE-NAME NOTE
Valid mineral species. 'Dumortierite Quartz' is quartz containing dumortierite inclusions, not pure dumortierite.