Ostwald ripening

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What Wikipedia says

Ostwald ripening is a phenomenon observed in solid solutions and liquid sols that involves the change of an inhomogeneous structure over time, in that small crystals or sol particles first dissolve and then redeposit onto larger crystals or sol particles.

Excerpt from the Wikipedia article “Ostwald ripening”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Bfigura --Bfigura 02:07, 14 November 2007 (UTC), CC BY-SA 4.0, via Wikimedia Commons.