While Japans Shirakawa Dark Stone Basalt is a durable and versatile material, its suitability for exterior applications in very dusty climates depends on several factors.

Firstly, basalt is known for its resistance to weathering and erosion, making it generally suitable for outdoor use. However, its specific performance in dusty climates may vary. Dust can accumulate on surfaces, potentially leading to discoloration or a dulling of the stones appearance over time. Regular cleaning or maintenance may be required to maintain its original look.

Additionally, the porosity of the stone is an important factor to consider. If the Shirakawa basalt has a high porosity, it may be more susceptible to dust infiltration and damage. However, if the stone is properly sealed or treated with a protective coating, it can enhance its resistance to dust and prolong its lifespan.

It is also worth considering the color of the stone. Dark-colored stones like Shirakawa Dark Stone Basalt may show dust or light-colored deposits more easily than lighter stones, requiring more frequent cleaning in dusty environments.

Ultimately, the performance of Shirakawa Dark Stone Basalt in a very dusty climate would depend on the specific conditions, maintenance practices, and the level of natural durability of the stone. Consulting with a local stone supplier or a professional familiar with the stones characteristics and local climate would be advisable to make an informed decision.