Method of making a concrete stepping stone whose upper surface replicates grouted stones

A method of making a cast concrete stepping stone whose upper surface replicates a plurality of grouted together natural stones in which the casting is done in an open-topped mold having a flat bottom surface and a continuous sidewall made from a strip of polyvinyl chloride lying edgewise on the mold's flat bottom surface with its opposite ends releasably held together during casting comprising:

• first apply a liquid release agent to the inside of the mold,
• place the mold on a vibrator table, fill the mold with wet concrete and trowel an upper surface of the wet concrete smooth,
• sprinkle dry body color consisting of 90% silica sand, 5% titanium dioxide binding agent and 5% powdered color over the upper surface of the concrete and lightly trowel until body color completely covers the concrete with a smooth consistant color,
• sprinkle dry colored release agent consisting of 95% powdered silicone and 5% powdered color having the same color as the body powdered color but a darker shade over the body color on the upper surface of the cast concrete,
• press a desired pattern into the surface of the semi-wet concrete,
• after six hours drying time, remove the cast concrete stepping stone from the mold,
• remove excess body color and release agent from the stepping stone using water and let the washed upper surface become totally dry, and then
• apply clear concrete sealer to the upper surface of the cast concrete stepping stone.