Gilashin yumbu na gilashi tare da yashi ma'adini mai inganci azaman albarkatun ƙasa, bayan ƙirar zafin zafin jiki mai ƙarfi, tare da kaddarorin sinadarai masu ƙarfi.Quartz yashi tace abu, kyakkyawan acid & juriya na alkali, mara gurbatawa, babban yawa, ƙarfin ɗaukar nauyi mai ƙarfi. Gilashin yumbu na gilashi tare da tsarin rami mai ƙarfi, na iya samar da babban yanki na musamman don haɗewar ƙwayoyin ƙwayoyin cuta masu amfani, rage tasirin ammoniya da nitrite a cikin ruwa.Wannan sinadaran inert yumbu mai tace ruwa shine ruwa mai kyau, ruwan teku da tafkin ingantaccen tace matsakaici