Mine Spoil Gravel Tile

The worked ground the mine throws out: a 2x2 m tile of crushed spoil gravel on a 0.05 m slab with base at y=0, tiling-edge vertices at exactly +/-1 m and flat sides on the module edge.

风格：low-poly, flat-shaded vertex colors, no textures, single shared material, so any set of these merges to one draw call; shares palette and scale with its kit