mineral
Yellow Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vibrant yellow color, vitreous luster, hexagonal crystal system, and conchoidal fracture with no true cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, vibrant yellow color, vitreous luster, hexagonal crystal system, and conchoidal fracture with no true cleavage.
Formation & geological history
Forms in hydrothermal veins and pegmatites through the crystallization of silica-rich solutions at high temperatures over millions of years.
Uses & applications
Used primarily in jewelry, lapidary arts, decorative carvings, and mineral collecting.
Geological facts
The yellow color is typically caused by natural irradiation or microscopic iron hydrate inclusions within the quartz matrix.
Field identification & locations
Identified by its distinct yellow hue, high scratch resistance, and lack of cleavage; commonly sourced from Brazil, Madagascar, 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
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Granite
Granite (Phaneritic intrusive igneous rock)
igneous