Chemical Properties of Travertine from Different Sources in Rwanda with Regards to Their Calcium Oxide and Magnesium Oxide Contents Author/Editor(s): Sirikare, N.S.Naramabuye, F.X.Marwa, E.Semu, EDate of publication: 2012RUFORUM Conferences and Workshops Read more about Chemical Properties of Travertine from Different Sources in Rwanda with Regards to Their Calcium Oxide and Magnesium Oxide Contents