This free package includes several brushes for ZBrush, focused on sculpting stone surfaces.
Erosion – Creates the appearance of a rough and eroded surface. Useful for very old stone exposed to the elements.
IMM Crystals – An insert multi-mesh brush with several sharp and jagged stone meshes which will protrude from the surface. Useful for kit-bashing together clusters of ice or crystal.
Stone Gouge – Carves out a smooth and rounded gouge from the surface. Useful for stylized stone surfaces or craters.
Stone Layers – Shave away or add on rough and jagged layers. Useful as a grittier alternative to Trim Adaptive