Repeated twinning of three or more individual crystals according to the same twin law but with the twin axes or twin planes not parallel, commonly resulting in threefold, fourfold, fivefold, sixfold, or eightfold twins, which, if equally developed, display geometrical symmetry not found in single crystals, e.g., chrysoberyl, rutile. Compare: repeated twinning; polysynthetic twinning.