Tuning hardness in calcite by incorporation of amino acids

Yi-Yeoun Kim, Joseph Carloni, Beatrice Demarchi, David Sparks, David Reid, Miki Kunitake, Chiu Tang, Melinda Duer, Colin Freeman, Boaz Pokroy, Kirsty Elizabeth Helena Penkman, John Harding, Lara Estroff, Shefford Baker, Fiona C. Meldrum