Thanks to its homogeneous structure, quartz is resistant to both physical and chemical impacts. Colored and colorless quartz varieties have all their own names like amethyst, citrine, rock crystal, smoky quartz, morion, or chrysoprase. They all belong to ornamental and semi-precious stones.
Quartz crystals have a unique ability to general electromagnetic oscilations as a result of mechanical deformations caused by temperature differences (like when water hits hot stones).
This is the so-called piezoelectic effect that produces atomic oxygen to saturate the air in the steam room with ozone. This freshens the air, stimulates your brain, and improves your health in general.
Density: 2600 kg/m3.
Specific heat capacity: 0,75 kJ/kg°C
Compressive strength: 2000 MPa
Melting point: 1570 °C