What is the texture of the surface shown in the image?

Analysis of the texture:

The image displays a surface with a fine-grained, granular texture. It appears to be composed of numerous small, closely packed particles or elements. These elements are predominantly dark, but there are also lighter specks that catch the light, giving it a shimmering or speckled appearance. In some areas, the texture appears almost like sand or glitter. The texture is uniform across the visible area, with no discernible large patterns or structures other than the individual grains.

Description of the texture: Granular, speckled, shimmering, fine-grained.