From spinodal decomposition to alternating layered structure within single crystals of biogenic magnesium calcite oleh Eva Seknazi, Stas Kozachkevich, Iryna Polishchuk, Nuphar Bianco Stein, Julie Villanova, Jussi-Petteri Suuronen, Catherine Dejoie, Paul Zaslansky, Alex Katsman, Boaz Pokroy