basalt rock 3d model

A primitive starting survival tool made from one rough loose stone. It is held directly in one hand, has no handle, no shaft, no rope, and no crafted parts. The stone is compact, heavy, irregular, and rounded enough to fit in a hand, with one flatter striking face. It should look like an early-game object a survivor found on the ground and uses to hit trees or ore. Dark gray basalt, chipped edges, rough natural cracks, simple readable silhouette, original low-poly game prop.