As the magma cools, mineral crystals develop, with the size of the crystal determined by the rate of cooling (magma that solidifies deep within the Earth where the temperatures are higher cool very slowly, and the result is large mineral crystals, while magma that solidifies where the temperature is less extreme cool quicker, forming small mineral crystals).
(mineral crystals; develop; ) (the result; is; large mineral crystals) (the crystal; determined; by the rate of cooling (magma) (while magma; solidifies; ) (the temperature; is; less extreme cool quicker) (magma; solidifies; L:deep within the Earth) (the temperatures; are very slowly; L:the Earth)
mineral crystals the result the crystal while magma the temperature magma the temperatures
develop is determined solidifies is solidifies are very slowly
large mineral crystals
by the rate of cooling (magma
less extreme cool quicker
L:deep within the Earth
L:the Earth