A rough, irregular stone, primarily composed of a granular mineral matrix. Its surface displays a varied texture, ranging from smooth, water-worn patches to jagged, sharp edges and crevices. The color is a muted gray, with hints of earthy browns and subtle greenish moss clinging to some depressions. Its overall shape is amorphous, a heavy, solid mass, cool and hard to the touch, with small embedded flecks of crystalline material.