Kwandon shawagi masu shawagi ƙwallo ne masu ƙura da za su iya shawagi a saman ruwa. Suna da launin toka-fari, siriri da kuma mara nauyi, kuma suna da nauyi mai sauƙi. Yawan girmansu shine 720kg/m3 (nauyi), 418.8kg/m3 (mai haske), kuma girman ƙwayoyin yana da kusan 0.1 mm, saman yana rufe kuma yana da santsi, ƙarfin zafin yana da ƙanƙanta, kuma ƙarfinsa ya kai ≥1610℃. Sinadarin sinadarai na ƙurajen shawagi galibi silicon dioxide da aluminum oxide ne. Yana da halaye da yawa kamar ƙananan ƙwayoyin cuta, rami, nauyi mai sauƙi, ƙarfi mai yawa, juriyar lalacewa, juriyar zafi mai yawa, rufin zafi, rufi da kuma hana harshen wuta. Ana amfani da shi sosai a cikin ɗaya daga cikin kayan da ake amfani da su don masana'antar refractory.