How long do crystals take to form?

The time it takes for crystals to form can vary widely depending on several factors, including the type of material, temperature, and environmental conditions. In some cases, crystals can form in just a few seconds, while in others, it may take days, weeks, or even years for larger crystals to develop. For example, salt crystals can form rapidly from evaporating seawater, whereas minerals in geological settings may take thousands of years to crystallize. Overall, the process is highly variable and context-dependent.