Recent experimental observations of nucleation, the point where a solid first forms, contradict the predictions of classical nucleation theory. As a result uncertainty exists over a number of possible mechanisms for the formation of crystals from liquids. Now a team of researchers have used transmission electron microscopy to observe the formation of the mineral calcium carbonate from start to finish, providing evidence of several different pathways involved in crystallization…..
http://nanotechweb.org/cws/article/tech/58470