Which type of rock, characterized by a fine texture, has the second highest bearing capacity?

The type of rock characterized by a fine texture that has the second highest bearing capacity is shale and its metamorphic counterpart, slate. Shale is a sedimentary rock that is composed of compacted mud and clay, and it typically has a fine-grained texture. Although not as strong as some coarse-grained igneous rocks like granite, shale can still provide a solid foundation in certain situations.

Slate, as a metamorphosed form of shale, demonstrates improved durability and strength. Its fine texture contributes to its ability to be split into thin, flat sheets, which make it useful for roofing materials and flooring. The bearing capacity of these rocks generally exceeds that of many sedimentary rocks, such as limestone and sandstone, and it provides more support than loosely packed materials like soil or sand.

Granite, known for its high density and strength, has the highest bearing capacity, which is why it often serves as the primary substrate for large structures. Limestone also displays decent bearing capacities but, depending on its porosity and composition, can vary significantly. Sandstone, while it can provide good bearing capacity depending on its cementation and grain size, typically does not exceed that of slate. Therefore, shale and slate represent a fine-textured rock option with sizable