Zigma International offers Quartz Lumps with Different Particle Sizes. Zigma International is an ISO 9001:2000 accredited company. The Company also manufactures exports and supplies environmentally friendly functional fillers such as talc, metakaolin, barytes, fly ash, bentonite, zeotite [diatomaceous earth], etc. The Quartz Lumps with Different Particle Sizes finds an application in ceramic and other allied industries. The Quartz Lumps with Different Particle Sizes is made up of a lattice of silica tetrahedral.