view article
Figure 7
In aragonite, the thickness of the (001) planes fits very well with that of the (110) planes; in fact, one can verify that Δ% = (3 × [d_{002}^{\rm Arg}] − 2 × [d_{110}^{\rm Arg}])% = −2.23, which is a very short range coincidence. The same does not occur when comparing the (001) thicknesses with those of (010). Instead, in this case one has two medium–long-range opportunities. In the first, Δ% = (4 × [d_{002}^{\rm Arg}] − 3 × [d_{020}^{\rm Arg}])% = +4.09, whereas in the second a better percent coincidence is obtained, even though the related distances are wider: Δ% = (7 × [d_{002}^{\rm Arg}] − 5 × [d_{020}^{\rm Arg}])% = −0.87.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 56| Part 6| December 2023| Pages 1630-1638
https://doi.org/10.1107/S1600576723008208
Follow J. Appl. Cryst.
Sign up for e-alerts
E-alerts
Follow J. Appl. Cryst. on Twitter
Twitter
Follow us on facebook
Facebook
Sign up for RSS feeds
RSS