Schmahl, Wolfgang W.; Griesshaber, Erika; Kelm, Klemens; Ball, Alexander; Goetz, Andreas J.; Xu, Dayin; Kreitmeier, Lisa; Jordan, Guntram
Towards systematics of calcite biocrystals: insight from the inside.
In: Zeitschrift fur Kristallographie, Vol. 227, Nr. 8, 2: S. 604-611
Volltext auf 'Open Access LMU' nicht verfügbar.
Biocrystals of calcite are frequent as they are employed by many phylaeof organisms in shells, eggshells, teeth, spines or sensoric apparatus.The calcite phase in these materials occurs in a range of constitutions,from polycrystalline fabrics to “single-crystals”. We demonstratesystematics of calcite biocrystal architectures, from the hybridcomposite mesocrystal fibres of brachiopod and mollusc shells, via thesubmillimeter-sized hybrid composite crystal aggregates formed bymesocrystal fibres with both morphological co-orientation and latticeco-orientation, to more complex purpose-oriented multiplex compositecrystals of echinoderm teeth, which feature a high degree ofsingle-crystal-like 3D orientational correlation of microstructuralelements of different morphology and composition. These systematics relyon observations by electron backscatter diffraction (EBSD) and TEM.