Quartz

Quartz is a mineral from the silicate group, composed of silicon dioxide (SiO₂).

It exists in many varieties, such as amethyst, rose quartz, smoky quartz, citrine, rock crystal, aventurine, rutilated quartz and inclusion quartz. These inclusions can consist of rutile, tourmaline, chlorite, hematite or other minerals, creating unique natural patterns within the crystal.