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Figure 6
Pattern matching for montmorillonite using the ICDD clay minerals database. This needs to be read in conjunction with Table 1[link], which includes the key for line colours. There are three montmorillonite samples in the database and these have been successfully identified as the top three matches despite considerable profile differences. The next pattern in the sorted list of rw values is the unrelated nonite mineral, which is quite different, having a sharp peak around 27°. This is reflected in the low value of 0.55 for rw.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 37| Part 2| March 2004| Pages 231-242
doi:10.1107/S002188980400038X
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