Problem to be solved. To provide a technique that can further improve a negative ion generation effect of tourmaline. Solution. A powder composition contains powder having spontaneous polarization, powder of an exciting agent that can excite the powder having spontaneous polarization, and at least one powder selected from a simple substance, an alloy and a compound comprising a Group 13 or 14 metal element or metalloid element. The powder composition can be applied to fiber products, paper, coatings, rust inhibitors, far-infrared electromagnetic spectrum absorbents, food aging, cosmetics, and beverage modification or the like.