Shapes of twins with reentering angles
Abstract
Between the faces of twinned crystals there are often reentering angles, by which it is sometimes possible to determine the law of twinning. Incoming angles, as it has long been observed, contribute to the accelerated growth of the twin compared to the single crystal. However, in twinning, the incoming angles do not always occur. Sometimes the generalized faces of twinned individuals can be parallel to each other or form “exiting” angles ...
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References
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