Granite belongs to igneous rock, which is generally formed by volcanic substances such as magma, while marble belongs to metamorphic rock, which is formed by natural metamorphism of one stone into another under the action of mineral mixing at high temperature and high pressure. Granite belongs to hard rock, and its rock is hard and dense, while marble belongs to medium hard rock, which usually has obvious patterns and contains a lot of mineral particles.

2. Difference 2- Different hardness

Compared with marble, granite has higher hardness and greater processing difficulty, but it is weathering-resistant, corrosion-resistant and difficult to deteriorate. Usually the appearance color can be maintained for more than a hundred years. Because half of marble contains impurities and calcium carbonate, it is easily influenced by carbides, carbon dioxide and water vapor in the atmosphere, which makes its surface lose its luster.

3. Difference 3- Different scope of use

One of the most obvious differences between marble and granite is the different scope of application. Usually marble is used indoors and granite is used outdoors. For example, outdoor roads are paved with granite. This difference is mainly determined by its radioactivity. Because granite is more harmful to human body than marble, it can only be used outdoors, and marble has better grain, so it is used more indoors.

4. Difference 4- Characteristics of Stone

Generally speaking, marble and granite can be distinguished by naked eyes. Marble is rich and has many color changes, while granite has a single pattern, generally grayish white, and there is no obvious pattern forming.

5. Difference 5- Different prices

Although granite and marble are high-grade stone materials, the price difference is still great. Marble is more favored by consumers because of its smoothness, fine texture and artistic features. Generally, the price varies from several hundred to several thousand yuan depending on the origin. However, because of its hardness, non-damage, high radioactivity and other characteristics, granite has a single pattern and is not decorative, so it can only be used outdoors, so the price is relatively low, generally ranging from tens of yuan to 300 yuan.