Semi-precious gemstones have been used for centuries in healing, energy production and spiritual growth. The stones can be used to heal the mind, body and spirit in a variety of ways. Whatever the need, there is a stone that resonates with the energy to overcome almost any obstacle.
Corundum is a crystalline form of aluminium oxide with traces of iron, titanium and chromium. It is a rock-forming mineral. It is one of the naturally clear transparent materials, but can have different colors when impurities are present. Transparent specimens are used as gems, called ruby if red and padparadscha if pink-orange. All other colors are called sapphire, e.g., "green sapphire" for a green specimen.