Matilda yana da duhu sosai, tare da albedo mai kama da sabo asphalt, kuma ana zaton ya raba irin wannan abun da ke ciki kamar CI1 ko CM2 carbonaceous chondrite meteorites, tare da farfajiyar da aka mamaye ta phyllosilicate ma'adanai. Matilda yana da wasu manyan craters masu yawa, tare da craters masu zaman kansu da ake kira ga filayen kwal da basins a duk faɗin duniya. Manyan craters guda biyu, Ishikari (29.3 km) da Karoo (33.4 km), suna da fadi kamar radius na asteroid. Abubuwan da suka shafi tasirin sun bayyana sun kasance sun lalata manyan kundin asteroid, kamar yadda gefuna masu kusurwa na craters suka nuna. Babu bambance-bambance a cikin haske ko launi da aka gani a cikin craters kuma babu bayyanar da ke tattare da Sylvia, saboda haka dole ne a sami kayan aiki na ciki na ciki wanda ke nuna alamun ma'adanai na phyllosilicate.
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