Stone occurred conversion of igneous rocks and sedimentary rock which has been heat, pressure and chemical reactions. But not yet to the point that the structure and composition change.
Java rock metamorphism of sedimentary rocks and designed akni heat. Chemical reactions and pressure, but have not yet reached the melting point until you make the shape. Structure and composition has changed.
The stone, the transmutation of igneous rock and stone floor which is heat and pressure chemical reactions, but it is not the melting point as to shape and structure components change.