Fig. 9
From: A non-classical view on calcium oxalate precipitation and the role of citrate
Characterization of calcium oxalate precipitates formed in the presence of citrate (II). FESEM (a, b) and TEM (c, d) images of calcium oxalate particles (mostly caoxite, according to our XRD analysis—see Supplementary Fig. 5) obtained after the titration experiments (10 mM citrate pH 6.2). The SAED pattern of the crystals (shown as insets in c) suggests that decomposition of the beam-sensitive oxalate material results in amorphization (see detail of the texture in d). Scale bars: a–c 1 μm. d 100 nm
