Agate jẹ iru nkan ti o wa ni erupe ile chalcedony, nigbagbogbo dapọ pẹlu opal ati cryptocrystalline quartz banded block, líle 6.5-7 iwọn, walẹ kan pato 2.65, awọ jẹ akosori pupọ.Nini translucency tabi opacity.