玄武岩（500 克）

Basalt is used to enrich soil, improve drainage, and provide essential minerals to plants in gardening.

Mix basalt into your compost pile to boost nutrient content and aid in the breakdown process of organic material.

Yes, basalt is safe for aquariums as it is non-toxic and can help maintain water pH levels.

Absolutely, basalt is ideal for landscaping due to its durability and natural appearance.