How does the durability of granite compare to marble in outdoor environments?

When it comes to choosing stone for outdoor environments, durability is a key factor. Granite and marble are two popular choices, but they differ significantly in their ability to withstand outdoor conditions. Granite, an igneous rock, is known for its exceptional hardness and resistance to weathering. Its dense structure makes it less porous, reducing the risk of water absorption and damage from freeze-thaw cycles. This makes granite an ideal choice for outdoor applications like patios, walkways, and monuments.

On the other hand, marble, a metamorphic rock, is softer and more porous than granite. While it offers a luxurious appearance, its susceptibility to weathering, staining, and etching makes it less suitable for outdoor use. Over time, exposure to rain, wind, and temperature fluctuations can cause marble to deteriorate, losing its polished finish and developing cracks.

In summary, granite outperforms marble in outdoor environments due to its superior durability and resistance to weathering. For long-lasting outdoor projects, granite is the more reliable choice, while marble is better suited for indoor applications where its beauty can be preserved.