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Figure 6
(a) The peak position is the location of the maximal peak intensity within the absorption edge triplet (observed in the LAS minerals). The minerals are plotted against SiO2 (per formula unit) and are labeled above. Additionally, the coordination of lithium in the respective mineral is indicated (between brackets) as it is important to the calculation of the BLD. (b) The BLD was determined using the formula described by Wenger & Armbruster (1991BB59) and their values for the mean bond lengths of four- and six-coordinated lithium minerals. The values for the individual bond lengths were obtained from Daniels & Fyfe (2001BB6) (eucryptite), Clark et al. (1968BB5) (spodumene) and Ross et al. (2015BB50) (petalite).

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 25| Part 2| March 2018| Pages 543-551
https://doi.org/10.1107/S1600577518000954
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