Answer / engineer muhammad amin baloch

Generally it is very difficult to differentiate both but
difference is at the end product.
Crystalline produce ordered solids while precipitation gives
amorphous solids
it is easier to carried out the precipitation than
crystalliztion

Answer / mangla

Basically the difference between crystallization and precipitation is the end product. Both are phase changes in which a solid is formed; however, crystalization produces crystalline solids while precipitation produces amorphous solids. Crystalline solids are more highly ordered than amorphous solids, and so it is generally harder to produce crystals than precipitates (this is especially true for biologists like me who try to crystalize proteins). In general, if you let the phase change occur more slowly (i.e. supersaturate a solution then let it cool) you will form crystals wheras if you let the phase change occur rapidly (i.e. mix two solutions and a solid forms immediately), you will form a precipitate

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