These reactions take place from the solid condition but may be facilitated from the presence of the fluid section lining the grain boundaries from the minerals. In distinction to the formation of igneous rocks, metamorphic rocks don't crystallize from the silicate melt, although large-temperature metamorphism can cause partial melting on https://rocksticks68901.blogitright.com/36445912/how-rock-sticks-can-save-you-time-stress-and-money