Lapis Lazuli from Afghanistan

<h1>Lapis Lazuli from Afghanistan</h1>Author: <a title="GemSelect" href="http://www.articlesbase.com/authors/gemselect/151868.htm">GemSelect</a> There are few gemstones with as long and romantic a history as lapis lazuli. Though found in several locations around the world, the finest lapis comes from the <a href="http://www.gemselect.com/other-info/afghanistan-gems.php">Badakhshan province of northern Afghanistan</a>, where it has been mined continuously for over 6,000 years. Lapis lazuli was one of the earliest gemstone materials. It was used for sacred amulets in ancient Egypt and by the Assyrians and Babylonians for cylinder seals. Historians believe that Cleopatra used powdered lapis for eye shadow. The ancient royal Sumerian tombs of Ur, located near the Euphrates River in lower Iraq, contained more than 6,000 beautifully executed lapis lazuli statuettes of birds, deer, and rodents as well as dishes, beads, and cylinder seals. Powdered lapis was also the source for the blue pigment known as ultramarine, used by painters from the Medieval period through the Renaissance. The synthetic version of ultramarine was discovered early in the 19th century and the use of expensive lapis for pigments quickly declined. Lapis is one of the few gemstones that is a rock rather than a mineral. That is because lapis is normally a mixture of 3 minerals: lazurite, calcite and pyrite. Lazurite, a complex mineral containing sulfur, is the essential ingredient of lapis and gives it its vivid blue color. Calcite is calcium carbonate, a white mineral responsible for the white streaks in many specimens of lapis. Pyrite is an iron sulfide which is white-gold in color and lends lapis its distinctive glitter. The <a href="http://www.gemselect.com/other-info/about-lapis.php">finest lapis</a> is a deep intense blue. High quality lapis is smooth and fine grained with a smoothly polished surface. Collectors look for a minimum of calcite. The calcite can be seen as white streaks or patches within the darker blue, or it can be distributed throughout the specimen, giving the rock an overall lighter blue hue. Pyrite inclusions are valued by collectors, but the inclusions should not be too large, since they have a tendency to discolor at the edges. Lapis is a fairly soft stone, ranging from 5 to 6 on the Mohs scale. It is also somewhat porous and should be protected from solvents and chemicals. Lapis is almost always cut as cabochons or beads, or carved into a variety of ornamental objects. Though there are many choices today in blue gemstones, lapis can fairly be said to be the original blue stone. But it is is unique for its rich historical associations as well as its color.About the Author: GemSelect is a leading online dealer in fine gemstones, specializing in sapphire, spinel, tourmaline and zircon. <a href="http://www.gemselect.com/lapis-lazuli/lapis-lazuli.php">Fine Lapis Lazuli</a>Article Source: <a href="http://www.articlesbase.com/">ArticlesBase.com</a> - <a href="http://www.articlesbase.com/jewelry-articles/lapis-lazuli-from-afghanistan-976608.html" title="Lapis Lazuli from Afghanistan">Lapis Lazuli from Afghanistan</a>

There are few gemstones with as long and romantic a history as lapis lazuli. Though found in several locations around the world, the finest lapis comes from the Badakhshan province of northern Afghanistan, where it has been mined continuously for over 6,000 years.

Lapis lazuli was one of the earliest gemstone materials. It was used for sacred amulets in ancient Egypt and by the Assyrians and Babylonians for cylinder seals. Historians believe that Cleopatra used powdered lapis for eye shadow. The ancient royal Sumerian tombs of Ur, located near the Euphrates River in lower Iraq, contained more than 6,000 beautifully executed lapis lazuli statuettes of birds, deer, and rodents as well as dishes, beads, and cylinder seals.

Powdered lapis was also the source for the blue pigment known as ultramarine, used by painters from the Medieval period through the Renaissance. The synthetic version of ultramarine was discovered early in the 19th century and the use of expensive lapis for pigments quickly declined.

Lapis is one of the few gemstones that is a rock rather than a mineral. That is because lapis is normally a mixture of 3 minerals: lazurite, calcite and pyrite. Lazurite, a complex mineral containing sulfur, is the essential ingredient of lapis and gives it its vivid blue color. Calcite is calcium carbonate, a white mineral responsible for the white streaks in many specimens of lapis. Pyrite is an iron sulfide which is white-gold in color and lends lapis its distinctive glitter.

The finest lapis is a deep intense blue. High quality lapis is smooth and fine grained with a smoothly polished surface. Collectors look for a minimum of calcite. The calcite can be seen as white streaks or patches within the darker blue, or it can be distributed throughout the specimen, giving the rock an overall lighter blue hue. Pyrite inclusions are valued by collectors, but the inclusions should not be too large, since they have a tendency to discolor at the edges.

Lapis is a fairly soft stone, ranging from 5 to 6 on the Mohs scale. It is also somewhat porous and should be protected from solvents and chemicals. Lapis is almost always cut as cabochons or beads, or carved into a variety of ornamental objects. Though there are many choices today in blue gemstones, lapis can fairly be said to be the original blue stone. But it is is unique for its rich historical associations as well as its color.

GemSelect is a leading online dealer in fine gemstones, specializing in sapphire, spinel, tourmaline and zircon. Fine Lapis Lazuli

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Article Tags: lapis lazuli, blue gemstones, lapis, lapis lazuli jewelery

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