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New and used Gemstone for Emerald in the UK at the best prices
To find out more about Beads, click on the 'view arrow' next to each item below. A new window will open and you'll be able to get yourself a real bargain.Emerald (Be3Al2(SiO3)6) is a variety of the mineral beryl, colored green by trace amounts of chromium and sometimes iron. It is highly prized as a gemstone and by weight is the most valuable gemstone in the world, although it is often made less so by inclusions, which all emeralds have to some degree. Beryl has a hardness of 7.5 on the 10 point Mohs scale of hardness. However, this Mohs rating can decrease, depending on the number and severity of inclusions in a particular stone. Most emeralds are oiled as part of the post lapidary process. The amount of oil entering an emerald microfissure is roughly equivalent to the size of a period in print. Emeralds come in many shades of green and bluish green. Courtesy of Wikipedia
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