Rare Size Southern Xinjiang Walnuts

The shape is predominantly shell-like, with a cross-shaped tip, a diamond-shaped indentation at the base, and a thick rim.
The surface features a bold pattern with clear textures, enhancing its three-dimensional appeal.
It possesses extremely high hardness and density, giving it a stone-like heft, and produces a clear ringing sound when struck. The outer skin is typically yellowish-brown.

Color changes are gradual and require long-term care, but with persistent polishing, it transforms into a rich crimson hue with an agate-like luster.