Quartz a crystal form of Silica is found in massive forming hills, in various forms like Quartz Sand, Sand Stone, and Quartzite. The common use of Quartz is in Glass, Ceramics, and Refractory. Other uses are to manufacture of Sodium Silicate, Silicon tetrachloride, Ferro Silicon, and also to use for water treatment processes. * Quartz is ...Volmin Industries Pvt. Ltd. :: Granite Manufacturer ...Volmin Industries Pvt. Ltd. are manufacturer and supplier of Indian natural stones such as Sandstone, Granite, Slate stone, marble blocks and slabs based in Rajasthan – INDIA. Also we have experience of more than 3 decades in quarrying of Ceramic raw material such as Potash Feldspar, Sodium Feldspar, Quartz, Soapstone, China clay.