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
MM 0,06-0,1 / 0,06-0,2 /0,1-0,3 / 0,1-0,5 / 0,1-0,6 / 0,3-0,9 / 0,4-0,8 / 0,7-1,2 / 1,8-2,0 / 2,0-3,5 / 3,0-5,2 / 5,0-8,0 / 8,0-16,0
National spherical silica/quartz sand
MM 0,1-0,4 / 0,2-0,5 / 0,3-0,6 / 0,4-0,8 / 0,5-1,0 / 0,7-1,2 / 0,8-1,2 / 1,2-1,6 / 1,5-3,0 / 2,0-5,0 / 4,0-6,0 / 6,0-10,0 /
National broken quartz sand withan high silica content
MM 0,4-0,8 / 0,7-1,2 / 0,1-1,0 / 0,1-1,6 / 0,4-1,6 / 1,0-2,0 / 1,0-2,5 /1,0-3,0 / 3,0-6,0 / 6,0-9,0 / 10-18
Silica/calcareous stones
MM 2,0-5,0 / 4,0-9,0 / 8,0-12 / 12-22
Volcanic materials
MM 0-1 / 0-3 / 1-3 / 2-4 / 1-6 / 3-6 / 6-14 / 7-12 / 9-15 / 12-24
Ceramic quartz sand
MM 0,06-0,2 / 0,3-09 / 0,7-1,2 / 1,0-2,0 / 2,0-3,5 / 3,0-5,0 / 5,0-8,0
Personalized mixtures in various sizes and percentages
Silica sand / Peat / Compost / Lapillus / Pumice / Basalt / Porphyry / Etc.
