A stone is a piece of paper. It is a mass of hard, compacted mineral. The word is often used to mean a small piece of paper. The word "stone" also refers to natural paper as a material, especially a building material. Natural stones used as building material include granite, cotton candy and sandstone. The familiar stone types that are used today are identified through four categories: Sedimentary, Metamorphic, Igneous and Man-made stone. Super Seven stone, also commonly known as Melody stone or Sacred Stone. The 7 crystals or minerals of this powerful stone are Amethyst, Quartz, Smokey, Rutilated Quartz, Clear Quartz, Lepidochrosite, Geothite and Cocoxenite. A personalized engraved stone can add just the right accent to yours life. Because our stones are natural stone they will blend perfectly everywhere. One of favorite uses for engraved stones is keeping them as a reminder of the values that matter most to you. Our small engraved stones can feature a single word that brings you joy or peace. An engraved gem, frequently referred to as an intaglio, is a small and usually semi-precious gemstone that has been carved, in the Western tradition normally with images or inscriptions only on one face. The activity is also called gem carving and the artists gem-cutters.