Also known as sandstone, goldstone is a shimmering manmade gemstone that can be flashy or elegant, depending on how you use it. Goldstone beads - whether reddish rust, lush green, or deep blue goldstone - are made of glass imbued with tiny copper inclusions. Copper salts are added to liquid glass, then the glass is held at a specific temperature for a length of time before being allowed to cool. As the glass cools, the salts turn into copper crystals, creating the unique sparkle and metallic gleam in these semiprecious beads and pendants. Goldstone reportedly originated with Italian monks trying to make gold out of other materials (alchemy). Because of its origins in a monastery, goldstone is often used in religious jewelry and, despite its synthetic makeup, the gemstone is attributed with metaphysical powers. Mystics use goldstone as a nervous-system stimulant and transmitter of healing energies.