I-agate inhlobonhlobo ye-silica e-microcrystalline, ikakhulukazi i-chalcedony, ebonakala ngokucoleka kwayo okusanhlamvu nokukhanya kombala.Ukuhlanzeka okuphezulu kwe-agate yemvelo yase-Brazilian (97.26% SiO2) amabhola emidiya agayayo, amelana kakhulu futhi amelana nama-acids (ngaphandle kwe-HF) kanye nencibilikayo, lawa mabhola asetshenziswa noma nini lapho inani elincane lamasampula lidinga ukugaywa ngaphandle kokungcoliswa.Osayizi abahlukene bamabhola okugaya i-agathe atholakalayo: 3mm kuya ku-30mm.Amabhola okugaya asetshenziswa kakhulu emikhakheni yeCeramics, Electronics, Light Industry, Medicine, Food, Geology, Chemical Engineering nokunye.