Figure 3From: Hierarchical super-structure identified by polarized light microscopy, electron microscopy and nanoindentation: Implications for the limits of biological control over the growth mode of abalone sea shellsTransmitted light microscopy of Haliotis shell thin section. Polarized light microscopy in transmission of a 60 μm thin section in orientation A. The transition region nacre/prismatic is centred on the microscopy stage. The left and the right image were obtained at the same position by rotating the stage 90°. The structure of the prismatic layer (P) is clearly visible. The tapering nacre structure gradually changes as a function of distance from the prismatic layer. Note that neither the lamellar structure nor the super-structure are visible. P, prismatic layer; N, nacre.Back to article page