mineral
Blue Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale. Color ranges from pale to dark blue, often due to microscopic inclusions of dumortierite, tourmaline, or riebeckite. Luster is vitreous to greasy. Crystal system is trigonal, though commonly found in massive or amorphous forms.
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Physical properties
Hardness of 7 on the Mohs scale. Color ranges from pale to dark blue, often due to microscopic inclusions of dumortierite, tourmaline, or riebeckite. Luster is vitreous to greasy. Crystal system is trigonal, though commonly found in massive or amorphous forms.
Formation & geological history
Forms in igneous, metamorphic, and hydrothermal environments. Often develops in pegmatites and hydrothermal veins where silica-rich fluids cool and crystallize over millions of years.
Uses & applications
Used in crystal healing, decorative items, lapidary arts, and gemstone jewelry.
Geological facts
The blue coloration in many quartz specimens is actually an optical illusion caused by light scattering off tiny microscopic mineral fibers included within the crystal matrix during its formation.
Field identification & locations
Identified by its distinctive blue color, conchoidal fracture, and high hardness (scratches glass easily). Found globally, with notable deposits in Brazil, India, South Africa, and the USA.
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Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Granite
Granite (Phaneritic intrusive igneous rock)
igneous