11. Magma compositions may evolve after formation by fractional crystallization , contamination, and magma mixing. 12. The fractional crystallization of the oxides then yielded " europium " in 1901. 13. This complex extraction process at the 3 plants is generally referred to as fractional crystallization . 14. It is a type of fractional crystallization . 15. The term " sanukitoid suite " includes more evolved rocks derived from sanukitoid through fractional crystallization . 16. Fractional crystallization models would be produced to test the hypothesis that they share a common parental melt.17. It has been suggested that the entire suite results from the fractional crystallization of a single parental magma. 18. The other major processes for separating the two metals are by fractional crystallization and by the Betts electrolytic process. 19. Therefore, the less-soluble rubidium hexachloroplatinate ( Rb 2 PtCl 6 ) could be obtained by fractional crystallization . 20. In 1911 he reported his results, having used his discovered method of bromate fractional crystallization to do the purification.