Natural holes: The main feature of the cave stone is that it has a naturally formed hole or cave structure, which is different in size and shape, increasing the particularity and decoration of the stone.
Texture and color: In addition to the hole structure, the cave stone also has a unique texture and color. The texture may be layered, striped or mottled, and the color is also varied, which can be gray, brown, yellow, etc.
Texture and hardness: The texture of the cave stone varies with different stone species, and the hardness is therefore different, but in general, the cave stone is usually a hard and wear-resistant stone.