Mansfield ellipse

Fig. 27 (a) Nearly circular crystal of Ci98H398 grown from a 2% solution in methylanthracene with Mansfield ellipse for ib2/2v = 0.41 fitted to the 100 faces. Note that here 110 faces are also curved (cf Sect. 4.3.5). (b) The Mansfield ellipse, fitted to the crystal in (a) compared to the Mansfield circle both apply to the centred rectangular lattice of polyethylene, rather than to the square lattice... 

Fig. 32 Lenticular crystal of Q98H398 grown from an initially 2 wt% solution in o-terphenyl at 115.8 °C. Mansfield ellipse corrected for the alkane crystal lattice is fitted to the central portion of the crystal. Crystal fi-axis is horizontal [60]...

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