SI-ea pearl quartzite iwuhlobo lwekhwalithi ephezuluitshe le-quartzite, enobuhle obuyingqayizivele nokuqina. Igama layo livela esikimini saso sombala omhlophe esiyingqayizivele kanye nokuthungwa kwesidala. Umbala oyinhloko umhlophe, umbala ophansi umnyama, noma umugqa ompunga wakhiwe, futhi uhlobo ngalunye lomugqa lunomklamo oyingqayizivele. Uhlelo lwayo lombala luhlukile, futhi lubonisa ubuhle bakudala nobesimanje. ISi-quartzite ye-pearl isetshenziselwa ukuklama kwangaphakathi umhlobiso, kanye nezindawo ezifana nephansi, udonga,ikhishi counter topfuthi isisekelo sekamelo sihlotshiswe ngasoendlini imihlobiso. Ngokuvamile siqapha izinhlobo ezihlukahlukene zezinto zokwakha ezisezingeni eliphezulu, ezifanele izinhlobo ezahlukene zezakhiwo, izitolo zotshwala, izindawo zokuthengisa, njll. Ukusebenza okuphelele, indawo eyandayo, izinga eliphezulu nomuzwa wokunethezeka, umphumela obanzi wokubonwayo wokusebenza. Ngaphezu kwalokho, inobulukhuni nokuqina kwemabula yasendulo emhlophe, futhi inokuhuzuka okuvelele kanye nokumelana nesimo sezulu, okuyenza ifanelekele ukusetshenziswa isikhathi eside.