Imagine trying to build a Colosseum-type edifice—including arches, vaults and various protrusions—while abiding by two strict rules: Only one type of brick may be used, and these bricks are required to be placed precisely, one against another, in a symmetrical arrangement. Not even a bit of mismatching is allowed. At best, you would be able to erect a chambered high-rise tower. Nature has similar laws for the construction of single crystals.
Click here for original story, Emergence of chirality and structural complexity in single crystals at the molecular and morphological levels
Source: Phys.org