What Happens To Different Minerals In Magma As It Cools?

What Happens To Different Minerals In Magma As It Cools? As a magma cools below 1300°C, minerals start to crystallize within it. If that magma is then involved in a volcanic eruption, the rest of the liquid will cool quickly to form a porphyritic texture. Why do different minerals form as magma cools quizlet? Evaporation/Precipitation-when