Crushed quartz sands, white or natural, to fill filters. Silica sands of Ticino river. Natural quartz sands in many colours for Caribbean beaches.
Depuration/Water Filtration Sands
Foreign spherical quartz sand with an high silica content
National spherical silica/quartz sand
National broken quartz sand withan high silica content
Silica/calcareous stones
Volcanic materials
Ceramic quartz sand
Personalized mixtures in various sizes and percentages
