Milky CZ is another form of cubic zirconia, altered to make its form look milky. It comes in various colors, and can be cut into any shape.
Moonstone is a sodium potassium aluminum silicate. Its name is derived from a visual effect, or sheen, caused by light diffraction within a microstructure consisting of a regular succession of feldspar layers. It is composed of two feldspar species, orthoclase and albite.