the.com/crystallization

means The process by which a substance forms a solid with an ordered, repeating structure — or, more loosely, the moment a vague idea suddenly resolves into something clear and fixed.

from Traces back to Greek 'krystallos,' meaning both 'ice' and 'rock crystal' — the ancients believed quartz was water frozen so hard and so long it could never thaw again. The word passed through Latin into French and English as 'crystal,' and chemists later built 'crystallize' on top of it to describe atoms locking into that same orderly lattice. The figurative sense — thoughts or plans 'crystallizing' into clarity — followed naturally, borrowing the image of something formless suddenly taking sharp, fixed shape.