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Welcome to Imerys Performance Minerals

Quartz

What is Quartz?

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.

Geology

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

  • Ferroalloy and ferro-silicon production
  • Aggregates
  • Solar panels

  • Ferroalloy and ferro-silicon production

    Imerys produces high purity quartz pebbles for use in the production of ferroalloys and ferro-silicon for special steel alloys.
    Used as the main carrier of  the silicium, the quartz pebbles offer high purity. Their particle size distribution allows to control the permeability of the mix during the fusion process. High purity and consistency boost production yield.

    Learn more

  • Aggregates

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

  • 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

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