Note 1 — INTRODUCTION
Reading edition
Granite is a type of igneous rock consisting of large interlocking grains of light-colored minerals. Rocks are classified as being either igneous, sedimentary, or metamorphic. Igneous rocks form by the solidification of molten material; sedimentary rocks form by the accumulation of sediments derived from older rocks; and metamorphic rocks form by the recrystallization of older rocks under conditions of high temperatures and pressures.