quartz

• Minéral dur et brillant composé de dioxyde de silicium, présent dans de nombreux types de roches comme le grès et le granite ; désigne aussi le verre de quartz incolore et presque pur.

A hard, glossy mineral composed of silicon dioxide, found in many types of rocks such as sandstone and granite; also refers to a colorless, nearly pure silica glass.

1. Crystalline mineralB2formal

   A hard, glossy mineral composed of silicon dioxide, found in many types of rocks such as sandstone and granite.

   Quartz (minéral)

   • The geologist identified a large quartz crystal in the cave.
   • Quartz is one of the most common minerals in the Earth's crust.
   • The sand on the beach sparkled because it contained tiny quartz particles.

   Synonymescrystalrock crystal

2. Synthetic glassC1formal

   A colorless, transparent glass made from nearly pure silica, often used in scientific and industrial applications.

   Verre de quartz

   • The laboratory used quartz glass for the high-temperature experiment.
   • Quartz glass is valued for its ability to withstand extreme heat.
   • The watch face was made of synthetic quartz for durability.

   Synonymesquartz glass