3 Gemstones are mineral crystals

3 Gemstones are mineral crystals

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What specifically are gems and gemstones? We know some of the most common ones - emeralds, rubies, sapphires and diamonds. But what exactly are they, how are they made and why we do we prize them so highly?

The International Gem Society defines a gem as "a mineral that has been chosen for its beauty and durability, then cut and polished for human adornment."

Most gems are minerals. Others, like pearls or amber, are created from living organisms. Usually gems are of a color that mirrors other natural elements we consider beautiful or valuable. Emeralds mirror the lush green of plant life, sapphires are the color of the sky and rubies are a rich blood-red. There are variations in color in all of these gems, of course, and in diamonds, but those are the colors most normally associated with them. Diamonds can come in colors as well, with pink and

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29 American Topaz
The world's largest cut topaz, called the American Topaz, resides at the Smithsonian Institution in Washington, DC. A 172-faceted topaz weighing 22,892.50 carats (5785 kg), it's the largest cut yellow topaz in the world, and one of the...

canary diamonds being highly prized variants.

Most gems are hard and durable, although pearls can be easily damaged, as can opals and moonstones. Usually a gemstone has to be durable enough to wear as adornment, but others, while too soft to wear, are valued by collectors. Pearls can eventually disintegrate, even if all you do is wipe dust off them. And if you spray hairspray or perfume on them, this can also damage your pearls.

Opals are highly prized for their beauty and fire and make exquisite jewelry, but are extraordinarily susceptible to damage. They can shatter easily if dropped. And there's a story of a woman who wore an opal brooch to a holiday party. When she left the warmth of the party to leave and the brooch experienced the sudden drop in temperature, it shattered, just like a glass that's been heated and then cooled too quickly.

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48 Rose Quartz
Who doesn't love rose quartz in all its varying hues of pink? Rose quartz takes its name from the flower because of its translucent and delicate pink color caused by traces of iron, manganese or titanium. Rose quartz is usually very large...

Diamond Clarity
What is Diamond Clarity? Diamond clarity is the measure of flaws found in and on the outside of a diamond. The less flawed a diamond is, the more value it has and the higher the price tag. There are very few diamonds which can be...

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Diamonds worth 2.6 million dollars stolen from Namibian firm

Diamonds worth 2.6 million dollars (2.1 million euros) have been stolen from the safe of a Namibian polishing company partly owned by diamond giant De Beers, an official said Wednesday.

Namibia: Diamonds worth $2.6m stolen

Diamonds worth $2.6m have been stolen from the safe of a Namibian polishing company partly owned by diamond giant De Beers.

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