A Sydney architecture studio spent nearly a year developing a new oyster shell terrazzo for a pavilion in Sydney’s Barangaroo, designed as a public place of gathering right on the harbour.

Founded by Peter Besley and Jessica Spresser, Besley & Spresser found historical precedents in “tabby concrete”, which is made from crushed or burnt oyster. However, tabby concrete does not express the shape of the oyster: “Using whole oysters and expressing this in the material is rare and much harder to do,” says Peter Besley. “It took us over a year of experimenting and testing to get it working as we wanted, and we had to certify it uniquely ourselves.”
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