mineral
Blue Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, blue to bluish-grey color due to microinclusions, vitreous luster, trigonal crystal system, and conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale, blue to bluish-grey color due to microinclusions, vitreous luster, trigonal crystal system, and conchoidal fracture.
Formation & geological history
Forms in hydrothermal veins, pegmatites, and metamorphic rocks through the incorporation of microscopic mineral fibers or inclusions during crystallization.
Uses & applications
Used primarily in lapidary work, ornamental carvings, crystal healing, and jewelry.
Geological facts
The blue coloration is typically caused by Rayleigh scattering from tiny inclusions of minerals like dumortierite, tourmaline, or crocidolite.
Field identification & locations
Identify by its hardness, conchoidal fracture, and distinct blue hue. Found globally in pegmatites and metamorphic terrains, particularly in Brazil and the USA.
