Quartz/ Silica in Powder Form is made up of a lattice of silica tetrahedral. Quartz/ Silica has a hardness of 7 on the Mohs scale and a density of 2.65 g/cm³. Quartz/ Silica can be availed in powder form. Quartz/ Silica in Powder Form is a common constituent of granite, sandstone, limestone and many other igneous sedimentary as well as metamorphic rocks.