Welcome to Imerys Performance Minerals


What is quartz?


Quartz is a hard, crystalline mineral composed of silicon and oxygen atoms and the second most abundant mineral in the planet’s crust, after the feldspar family of minerals. Quartz crystals, which are hexagonal in shape, vary enormously in size and color. This versatile mineral is both durable and chemically inert and demonstrates excellent heat resistance as well as electric properties.


Quartz is a defining constituent of granite and other felsic igneous rocks.
It is common in sedimentary rocks such as sandstone and shale as well as schist, gneiss, quartzite and other metamorphic rocks.

Physical properties

Imerys quartz SEM photo
  • Hard (7 on Mohs scale)

  • Chemically inert

  • Thermal stability

  • Electrical properties

  • Solar panels
  • Aggregates
  • Solar panels

    High purity quartz is an ideal material for manufacturing the crucibles used in the casting of silicon for photovoltaic cells that make up solar panels and electronic components.

    Imerys quartz solar panels
  • Aggregates

    Imerys also produces quartz sand and gravel aggregates and pebbles for decorative use to serve the construction and public works sectors.

For more information, visit Imerys Ceramics.