Comparison of the real structure with the Fedorov installation orientation of zircon crystals.
Abstract
The method of calculating grid densities previously used in crystal-chemical analysis yields results that do not coincide with those for the real structure, because we are dealing not with one but with several parallelepipedal systems of points interleaved within one another. This circumstance was already noted by E. S. Fedorov himself in his article "On the question of determining the density of atomic arrangement in crystal faces." However, the method of calculating grid densities according to Fedorov can be used not only for individual parallelepipedal lattices, but also in the presence of a structure forming lattices similar to the aforementioned "pseudo-octahedral" one, for calculating geometric atomic grid densities.
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References
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