What are two factors affect the type of igneous rock that is formed?

Answer 1

The mineral composition of the magma and the rate at which it cools determines what rock forms.

Answer 2

The composition of the magma, which includes the proportion of silicate minerals and gases, and the cooling rate of the magma are two factors that influence the type of igneous rock that forms. Slow cooling leads to the formation of large crystals (intrusive rocks), while rapid cooling results in small or no crystals (extrusive rocks).

Answer 3

The mineral composition of the magma, where it was formed (above ground or underground), and whether or not gasses were inside when it solidified.

Answer 4

The type of igneous rock formed depends upon the rate of cooling, the amount of water in the magma, and the chemical composition of the magma.

Answer 5

Rate of cooling and chemistry.

Answer 6

heat and pressure