Granite is an Earth special; while Mercury, Venus and Mars are covered with basalt, granite can only be found on Earth. Widely used, granite is a beautiful rock material that exists in abundance. In this week’s article, we’ll be giving you the “what’s what” of granite, so that you have a bit more insight into the material behind your kitchen benchtops.
What is granite?
Made of large, tightly packed minerals, granite is a phaneritic material- this means that the individual grains are visible to the human eye. It is made of quartz and feldspar, which give the material a light tone, ranging from pink to white in colour. Against this light background, the individual particles punctuate the colour with black and grey. It’s almost like salt and pepper! Granite is also classified as igneous and plutonic- the random arrangement of grains in granite is proof of this.
How does granite form?
Granite is found in large plutons in the areas in which the Earth’s crust has been eroded. This is because granite has to cool slowly, deeply buried, in order to produce such large mineral grains. However, before this, granite is formed through the melting of continental rocks. Through this, heat and volatiles are added to the material. With the slow release of fluids and heat from basalt, continental crust turns to granite over time.
Natural vs. commercial granite: what’s the difference?
Stone dealers and geologists have different definitions for granite. While geologists are concerned with scientific accuracy, stone dealers use the term ‘granite’ to refer to any rock with large grains and hard minerals. Because of this, many of the types of commercial granite found in showrooms and buildings don’t match the “true” definition of granite.
Granite really is one of a kind in our universe, and looks amazing around the home! Stone Design Group offer a huge range of marble, granite, caesarstone and high-end granite kitchen benchtops. For more information, get in touch by calling 03 9498 3444 today.