Fumed Silica Powder (SiO2)
May 28, 2021
May 28, 2021

River Sand

Also known as Feld spathic sand, brown sand, or construction sand, will always contain some silica, but only in amounts less than 95%. For example, typical brown sand used for concrete applications can contain up to 80% SiO2, along with varying amounts of iron, carbonate, potassium, and other trace elements/minerals.