mineral
Quartz (Yellow/Citrine variety or Iron-stained Quartz)
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, yellowish to orange-brown color due to iron oxide staining, vitreous to greasy luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, yellowish to orange-brown color due to iron oxide staining, vitreous to greasy luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.
Formation & geological history
Formed in hydrothermal veins, pegmatites, and as secondary deposits in sedimentary rocks through the precipitation of silica-rich solutions under varying temperature and pressure conditions.
Uses & applications
Used in decorative items, jewelry, crystal healing collections, and as raw material for various industrial applications.
Geological facts
Quartz is one of the most abundant minerals in the Earth's continental crust and exhibits piezoelectric properties, meaning it can generate an electrical charge in response to mechanical stress.
Field identification & locations
Easily identifiable by its high hardness (scratches glass) and conchoidal fracture. Commonly found worldwide in diverse geological environments.
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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
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
Septarian Pebble
Septarian nodule / Concretion
sedimentary