How Hard Is Limestone?

Hardness scale and durability: limestone is a relatively soft stone, rated between a 3 and 4 on the mohs scale of harness, similar to marble.

How Hard Is Limestone?

Limestone is one of the most common sedimentary rocks found in nature. It is used in many industries and applications, including as building material, as a decorative material in homes and gardens, and as a source of calcium. But how hard is limestone, really?

The answer to this question depends on the type of limestone and its porosity. Generally speaking, limestone is a relatively hard rock, with a hardness of around 3 to 4 on the Mohs scale of hardness. This means that it is quite difficult to scratch the surface of limestone with a metal or other hard object. It is also quite difficult to break a piece of limestone without the use of a tool.

However, the hardness of limestone can vary significantly depending on the type of limestone and its porosity. For example, some types of limestone can be very soft and easily scratched with a metal object. Other types of limestone can be much harder and require a tool to break them.

The porosity of the limestone also affects its hardness. When limestone is porous, it is softer and easier to scratch and break. On the other hand, when the limestone has less porosity, it is harder and more difficult to scratch or break.

Another factor that affects the hardness of limestone

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