( ( ( The rate ) ( of ( ( cooling and ) crystallization ) ) ) ( ( affect ( ( the size ) ( of ( mineral crystals ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN rate)) (PP (IN of) (NP (NN cooling) (CC and) (NN crystallization)))) (VP (VBP affect) (NP (NP (DT the) (NN size)) (PP (IN of) (NP (NN mineral) (NNS crystals))))) (. .)))
The rate of cooling and crystallization affect the size of mineral crystals.
(ROOT (S (NP (JJ Mineral) (NNS crystals)) (VP (VBP are) (VP (VBN formed) (SBAR (WHADVP (WRB when)) (S (NP (JJ hot) (NN lava)) (VP (VBZ cools)))))) (. .)))