For building houses in the United States, the most suitable types of sand and stone are those that are locally sourced, have high compressive strength, and are free from impurities. Local materials are preferred due to their availability, cost-effectiveness, and compatibility with the local environment. The ideal sand should be clean, well-graded, and free from organic matter, while the stone should be durable, with a high compressive strength and low water absorption rate.

The choice of sand is crucial as it forms the foundation for concrete and mortar, which are essential components of construction. Clean, well-graded sand ensures a strong bond between the aggregates and the cement, leading to a durable structure. According to the American Concrete Institute (ACI), the fineness modulus of sand should be between 2.2 and 2.6 for optimal performance in concrete mixtures. This range ensures that the sand particles are fine enough to fill the voids between the larger aggregates but not so fine that they lead to a weak mix.

For stone, granite is often the preferred choice due to its high compressive strength and resistance to weathering. The American Society for Testing and Materials (ASTM) specifies that the compressive strength of construction stone should be at least 10,000 pounds per square inch (psi) for exterior applications. Additionally, the water absorption rate should be low, ideally less than 1%, to prevent the stone from absorbing moisture and expanding, which can lead to cracking and structural damage.

Data from the U.S. Geological Survey (USGS) indicates that granite is one of the most abundant types of stone in the United States, making it readily available for construction purposes. Furthermore, granite's natural resistance to weathering and its aesthetic appeal make it a popular choice for both residential and commercial buildings.

In summary, for building houses in the United States, the use of clean, well-graded sand and durable granite stone is recommended. These materials ensure structural integrity, cost-effectiveness, and compatibility with the local environment.