LYCOS RETRIEVER 
Gemstones: Colors
built 292 days ago
Gemstones are made deep inside the earth and come in every hue, tone, saturation and color you can imagine. And even better, they are everlasting. A purchase of a fine piece of gemstone jewelry will last a lifetime and will certainly be passed on from generation to generation.
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Color is the most obvious and attractive feature of gemstones. The color of any material is due to the nature of light itself. Daylight, often called white light, is actually a mixture of different colors of light. When light passes through a material, some of the light may be absorbed, while the rest passes through. The part that is not absorbed reaches the eye as white light minus the absorbed colors. A ruby appears red because it absorbs all the other colors of white light - blue, yellow, green, etc.
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One of the most valuable chalcedony (quartz) gemstones, chrysoprase is prized for its rarity and opalescent apple-green color. Its name comes from Greek words chryso for golden and prason for leek. It is a lighter-colored form of prase. Chrysoprase occurs as nodules or fillings of clefts in serpentine rocks and in weathered materials of nickel ore deposits. Unlike most other green gemstones, which owe their color to chromium or vanadium, chrysoprase's color is derived from staining by nickel oxide.
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The diamond is a gemstone which has its value determined in a different way than most or even all other gemstones. Traditionally the diamond was valued mostly for its physical properties such as hardness and brilliance, not unlike any other (colored) gemstone, and since a diamond was not particularly rare, [2], other (colored) gemstones such as a sapphire or a ruby were valued higher than a diamond for a long time. Although the large diamond finds in South Africa created an even larger supply of diamonds, its trade in the 20th century ... became strongly regulated by a single organization: De Beers. [3]. Both their monopoly of the market and their continuous marketing campaign in the last 50-75 years have greatly influenced the perceived value of a diamond, unlike that of any other (colored) gemstone.
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Like flowers, colored gemstones come in every hue, tone and saturation. Both are born of Nature and evolve into something exquisite. But, unlike flowers whose beauty fades with time, the beauty of colored gemstones is everlasting.
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There are more than 30 popular gem varieties and many more rare collector gemstones. Some varieties ... come in a range of colors. Are you particularly fond of sapphires? Are you looking for something in orange?
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