He reanga hou te papa kupenga a GRC i hangaia mai i te silicate, te muka pararopi, te muka kohuke, te kirikiri kiripaka me etahi atu waahanga na roto i te pehanga teitei.Karekau he matū paitini me te iraruke i te papa, ka taea te pirau katoa, ka rite te oranga o te mahi ki to te whare.