Granite is igneous rock, which provides a clue to its origins. “Igneous” come from the Latin igneous meaning “fire” (also the root word of ignite) and indicates that it was formed by liquid, fiery magma and melted just like volcanic lava. In fact, its chemical composition is similar to that of lava. However, unlike lava, the molten rock never reached the surface; It solidified deep inside the earth, where it slowly cooled and crystallized.
The granite that comes from the Canadian Shield is estimated to be approximately 3.8 billion years old. Splits and riftscaused by the earth’s plates shifting (due to seismic activity) forced the granite to the surface in the Precambrian age, more than 570 million years ago. Luckily for us, the Canadian Shield is known around the world for producing some of the most beautiful, durable granite in the world.