
mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on Mohs scale, vitreous luster, hexagonal crystal system, conchoidal fracture, and specific gravity of 2.65.
Identified More mineral →
Explore Quartz in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 7 on Mohs scale, vitreous luster, hexagonal crystal system, conchoidal fracture, and specific gravity of 2.65.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through crystallization from silica-rich melts or hydrothermal solutions.
Uses & applications
Widely used in electronics, glassmaking, abrasives, and as a gemstone or specimen for mineral collectors.
Geological facts
Quartz is one of the most abundant and varied minerals on Earth, forming the primary component of many sandstones and granites.
Field identification & locations
Identified by its high hardness, lack of cleavage, and distinct conchoidal fracture; found globally in almost all geological settings.