Know all about Mylonite and Essexite properties here. All properties of rocks are important as they define the type of rock and its application. Mylonite belongs to Metamorphic Rocks while Essexite belongs to Igneous Rocks.Texture of Mylonite is Foliated whereas that of Essexite is Granular. Mylonite appears Dull, Banded and Foilated and Essexite appears Banded. The luster of Mylonite is shiny while that of Essexite is not available. Mylonite is available in black to grey colors whereas Essexite is available in dark grey to black colors. The commercial uses of Mylonite are creating artwork, gemstone, jewelry and that of Essexite are cemetery markers, commemorative tablets, jewelry, sea defence, tombstones.