Table 1.
HRXRD derived lattice parameters, crystallite size (L) and microstrain fluctuations (ε) of biogenic and abiotic (synthetica) MSU
| MSU | a (Å) | b (Å) | c (Å) | α (°) | β (°) | γ (°) | Unit cell vol. (Å3) | L (nm) | ε |
|---|---|---|---|---|---|---|---|---|---|
| Biogenic tophusb | 10.8745(5) | 9.4800(9) | 3.5549(2) | 95.46(2) | 99.38(2) | 96.99(8) | 356.39(7) | 489.1 | 0.0011 |
| Synthetic Ib | 10.8662(2) | 9.5171(8) | 3.5622(8) | 95.02(9) | 99.46(3) | 97.24(4) | 358.26(3) | 179.8 | 0.0043 |
| Biogenic SFc | 10.8755(2) | 9.4811(4) | 3.5563(5) | 95.45(1) | 99.34(2) | 96.97(7) | 356.68(6) | 362.4 | 0.0021 |
| Synthetic IIc | 10.8701(2) | 9.5155(8) | 3.5643(8) | 95.01(3) | 99.53(4) | 97.25(1) | 358.48(6) | 150.3 | 0.0041 |
| Average lattice strain biogenic (Δx/x in %) | 0.06 ± 0.002 | −0.38 ± 0.02 | −0.22 ± 0.01 |
aAbiotic MSU crystals obtained in two different titration runs.
bHRXRD analyses performed at SOLEIL synchrotron.
cHRXRD analyses performed at ALBA synchrotron.