- diadochy
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—diadochic /duy'euh dok"ik/, adj./duy ad"euh kee/, n. Crystall.the ability of certain different elements to exist in place of each other in certain points of a space lattice; isomorphism.[irreg. < Gk diadoché succession; see DIADOCHOKINESIA]
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capability of an atom or ion (charged atom) to replace another in a particular crystal lattice. The replaceability may be complete or partial; the degree of substitution depends on the temperature of equilibration, the availability of substituting ion, and its radius, charge, and electronic structure relative to its diadochic partner. For example, in olivine structures an iron ion may completely replace the magnesium ion.* * *
Universalium. 2010.
