Stone, in general, is considered a durable material; however, not all stones are as durable as one might anticipate. Stone durability is dependent on its composition, which can affect strength and appearance, and environmental exposure factors. Even though a particular stone may be thought of as uniform, it is still a natural material with varying composition and physical properties. These properties can vary significantly, even for stone removed from slightly different areas of a single quarry or formation. Small variations in some stone types can result in significant differences in durability performance in service.
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