mineral
Quartz with Tourmaline
Silicon Dioxide (SiO2) with complex cyclosilicate inclusions
Hardness of 7 on the Mohs scale, transparent to translucent with a vitreous luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity around 2.65.
Identified More mineral →
Explore Quartz with Tourmaline in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 7 on the Mohs scale, transparent to translucent with a vitreous luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity around 2.65.
Formation & geological history
Formed in hydrothermal veins and pegmatites through the cooling and crystallization of silica-rich fluids under high pressure and temperature over millions of years.
Uses & applications
Commonly used in lapidary work, jewelry making, crystal healing, and mineral specimen collecting.
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 when mechanical stress is applied.
Field identification & locations
Easily identified by its high hardness (scratches glass) and conchoidal fracture. Found worldwide in nearly all geological environments, particularly in pegmatites and hydrothermal quartz veins.
More like this
Other mineral specimens
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Soil with Mineral Detritus and Quartz Fragments
Regolith / Silicate Mineral Aggregate
sedimentary
Limonite / Goethite (Iron Ore Mineral nodule)
FeO(OH)·nH2O / FeO(OH)
mineral
Septarian Pebble
Septarian nodule / Concretion
sedimentary
Schist
Schist
Metamorphic
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
mineral