Valli Extra White - Extra Bianco Quartz is a high quality sand with a SiO2 content being 99.2%, it is processed with an optical sorting machine to remove any colour impurity.

It is mechanically ground, dried and sieved in various grain sizes. Valli Extra White Quartz is a crystal of polyhedral shape, with a high level of whiteness and a high resistance to heat (1500-1700°C). Its hardness index on the Mohs scale is 7 and has a specific weight of 1500 kg per cubic meter.

Valli Extra White Quartz is intended for the following fields: aquariums, paint factories, decorations, floorings, wall cladding, etc…