Corundum
Corundum has been historically known as the gemstones ruby (red corundum) and sapphire (other colors). Corundum is very hard, tough and stable, making it ideal for a variety of uses.
Have you ever wondered the meaning of your favorite gemstone? How about amethyst's metaphysical properties? Are there any green gems besides emerald or peridot? We have answers to all these questions, along with notes about the proper care and cleaning of hundreds of gemstones. Find out the meanings, properties and powers of everything from Amethyst to Zoisite. And don't forget to get inspired by gorgeous design ideas, too!