mineral
Blue Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, blue to bluish-gray color, vitreous luster, hexagonal crystal system, and conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale, blue to bluish-gray color, vitreous luster, hexagonal crystal system, and conchoidal fracture.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through the inclusion of microscopic fibrous minerals like crocidolite or dumortierite.
Uses & applications
Used primarily in jewelry, lapidary arts, and as a decorative collector mineral.
Geological facts
The distinct blue color is typically caused by Rayleigh scattering from tiny mineral inclusions trapped within the quartz matrix during crystallization.
Field identification & locations
Identified by its high hardness, conchoidal fracture, and lack of cleavage; commonly sourced from Brazil, India, and the United States.
