Gemstones tell a story millions of years old. They form in the earth as rare minerals from silica, like buried secrets waiting to be uncovered. There are nearly 4,000 different kinds of gemstones. They are classified as precious or semi-precious based on their physical and chemical properties. The conditions in which a stone forms also affect its value, which is why only a few are considered precious. Rarity and purity further increase a stone's worth: the rarer and purer a gem, the more valuable it is. Gemstones also carry spiritual, emotional, and physical associations. This article looks at five gemstones and their benefits, for anyone who loves gems and jewelry.
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Diamonds are among the most famous and beautiful gemstones; most wedding rings feature them as a symbol of enduring love. As the hardest natural material, diamonds resist breaking, scratching, and chipping, and their brilliance makes them popular in many types of jewelry. Clear diamonds are the most common and well-known, but they also occur in yellow, black, and white varieties. Beyond their use in jewelry, diamonds have been credited in traditional medicine with helping digestive problems, epilepsy, and other neurological conditions. They are said to reduce irritability, boost vitality, and strengthen the immune system. Some ancient sources also claim diamonds were used to remove and protect against poisons.
Turquoise is an opaque stone without the shine or transparency of many other gems. It is distinguished by a layered structure and appears in shades of blue, green and gray-green, sometimes with yellowish tones; the cyan hue is considered the most valuable and attractive. Turquoise has long been used in alternative medicine. The ancient Egyptians applied it for respiratory and immune ailments, and many people believe it calms emotions, brings good luck, and wards off envy. It is also used to treat and strengthen the heart and to relieve palpitations.
Most jewelry collections include at least one piece of pearls; they are classic and feminine. Pearls come in two main types. Saltwater pearls form in oysters in the ocean and are typically round, appearing in colors such as black, gold, or white. Freshwater pearls develop in mussels in lakes and rivers and are often round or oval, in shades of pink, white, or purple. Saltwater pearls are more expensive because of their rarity, shape, and qualities. Pearls have been used traditionally to help dental and eye problems, strengthen the nerves, and are rumored to relieve menopausal symptoms.
In the first century AD, the naturalist Pliny described the emerald as 'nothing greener'—a fitting tribute to its vivid green color, which has made it famous for centuries. Emeralds symbolize peace, renewal, and hope. Queen Cleopatra was famed for her passion for emeralds, which featured among her royal jewels. Emeralds are traditionally given for the twentieth and thirty-fifth wedding anniversaries as a symbol of fidelity. They are believed to protect the wearer from poisonous insects and are credited with calming the nervous system, improving vision, and protecting the body's cells. Emeralds are also said to drive away negative energy and attract good luck, hope, and harmony.
Zircon is a silver-gray metal known for its resistance to corrosion, which gives it many uses, including surgical instruments. It is also used in alloy steel, stained glass, bricks, ceramics, light bulbs and their filaments, and in creating synthetic gemstones. About 300,000 patients have benefited from zircon when it was used to make their prostheses, reportedly without adverse reactions. Its various properties also make it useful in dental restorations.