mineral
Quartz Crystal Cluster / Quartzite
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to translucent with a vitreous (glassy) luster, trigonal crystal system, conchoidal fracture with no true cleavage, and a specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, transparent to translucent with a vitreous (glassy) luster, trigonal crystal system, conchoidal fracture with no true cleavage, and a specific gravity of 2.65.
Formation & geological history
Formed in hydrothermal veins, pegmatites, and as a primary component of many igneous, metamorphic, and sedimentary rocks over millions of years.
Uses & applications
Used in electronics, watchmaking, glass manufacturing, abrasives, gemstone carving, and mineral collections.
Geological facts
Quartz is one of the most abundant and widely distributed minerals on Earth's continental crust, known for its piezoelectric properties.
Field identification & locations
Identified by its high hardness (scratches glass), lack of cleavage, and characteristic glassy luster. Commonly found worldwide in almost all 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