Bragg, William Henry, Sir, 1862-1942, Bragg, William Lawrence, Sir, 1890-1971 · London : G. Bell · leaf 161
axis, which is such that a i-Qtationof 2- round it and a movement along- it are necessarv to bringthe structure to self-coincidence. 144 CRYSTAL SYMMETRY AND THE the structures assigned to them would indicate thatthe crystals belonged to the holohedral class, andthis is also the class to which they… … Fig. 44. The large circles represent zinc atoms, the small circles sulphur atoms.Blacks and whites of each size are in different planes. so to speak, on the ground and first floors respec-tively, the whole plan representing two layers ofcubes. It is the same with the sulphur atoms ; theblack atoms…
Crystallography · X-rays
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