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Table 2
Published and refined lattice parameters for vaterite and calcite phases.
| Vaterite – Space group: P63/mmc | ||||
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| Capillary | a′ (Å) | c′ (Å) | Wt % | |
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| Published | 4.13 | 8.49 | ||
| Sapphire | Refined | 4.1226 (1) | 8.4653 (3) | 65.5(4) |
| Quartz | Refined | 4.1227 (4) | 8.462 (1) | 50.2(4) |
| Calcite – Space group: R-3c | ||||
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| Capillary | a (Å) | c (Å) | Wt % | |
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| Published | 5.05 | 17.32 | ||
| Sapphire | Refined | 4.9869 (1) | 17.0492 (4) | 34.4(4) |
| Quartz | Refined | 4.9844 (4) | 17.058 (1) | 49.7(4) |
Notes.Published values obtained from the ICSD database. Error values stated are for the final figures. Values given are from samples at room temperature and initial formation pressure; 6 bar for sapphire, 20 bar for quartz.
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