mineral
Blue Quartz
Silicon Dioxide (SiO2) with inclusions
Hardness of 7 on the Mohs scale, pale to deep blue color, vitreous luster, hexagonal crystal system, conchoidal fracture, specific gravity of 2.65
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Physical properties
Hardness of 7 on the Mohs scale, pale to deep blue color, vitreous luster, hexagonal crystal system, conchoidal fracture, specific gravity of 2.65
Formation & geological history
Formed in igneous, metamorphic, and sedimentary environments, often colored by microscopic inclusions of fibrous minerals like dumortierite or riebeckite
Uses & applications
Used in crystal healing, jewelry making, lapidary arts, and mineral collecting
Geological facts
Blue quartz is relatively rare compared to other varieties of quartz and its color is typically allochromatic, caused by light scattering from tiny inclusions rather than trace elements in the crystal lattice
Field identification & locations
Identified by its hardness, conchoidal fracture, and blue coloration; commonly sourced from localities in Brazil, India, and the United States
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