Both granite and marble are stone; and there are patterns, and many consumers often cannot tell the difference between the two. In fact, there are many differences between granite and marble. They are two different types of stone.

Stone characteristics

Marble patterns are varied, line patterns are smooth and freehand, and colors are varied. The patterns of granite are all spots, without obvious pattern formation, and they are relatively simple

Range of use

The most obvious difference between granite and marble is that one is used outdoors and the other is used indoors. Most of the natural stone with patterns seen indoors is marble, while the spotted natural stone paving outdoors is granite.

Radioactivity comparison

The radiometer for marble and granite is relatively large. There are three grades of A/B/C. Marble is usually unified as A grade, and decoration is not restricted. The granite is generally B/C grade and is limited to places other than the bedroom.

The origin of stone

Marble is a metamorphic rock, which is a metamorphic rock formed by the original rock in the earth's crust through high temperature and high pressure in the crust. Granite belongs to magmatic rock, which is magma ejected from the earth's crust, or rocks formed by cooling and solidification of melted existing rocks.

Difference in hardness

Marble generally contains impurities, and calcium carbonate is easily weathered and corroded by carbon dioxide, carbides, and water vapor in the atmosphere, with a Mohs hardness of 3-5. Granite has higher hardness than marble, so it is difficult to process, but it is resistant to acid and weathering corrosion. It is not easy to be weathered and deteriorated, the appearance and color can be maintained for more than 100 years, and the Mohs hardness is 6-7.

Granite is more cost-effective than marble. Although both granite and marble are high-end stone products, the prices of the two differ greatly.

The granite has a single pattern, little color change, and poor decoration. The advantage is that it is durable, not easy to be damaged, and will not be dyed, and it is mostly used outdoors. The granite ranges from tens of yuan to several hundred yuan. The rough surface is cheaper, and the smooth surface is more expensive.

The texture of marble is smooth and delicate, and the texture is varied. The fine works have charming patterns like landscape paintings. Marble is an artistic stone. The price of marble ranges from hundreds of yuan to several thousand yuan, and the price of different quality varies greatly depending on the place of origin.

Source: https://www.unisun-groups.com/how-to-distinguish-between-granite-and-marble/