What are the minor ingredients for texture in chocolate?

There are three basic ingredients in chocolate (the type you eat, not the type used for cooking): cocoa, sugar, and milk fat. The cocoa comes in two forms: cocoa solids and cocoa butter.

The texture of chocolate is more the result of treatment during production. The important aspect is called conching. Conching is a slow agitation to help distribute the cocoa butter evenly throughout the product.

Chocolate that has not been sufficiently conched becomes gritty.