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By admin, April 20, 2007 3:02 pm

Tourmaline rough

According to Egyptian legend tourmaline color when it passes over a rainbow on its journey from the center of the earth and that is why it is often referred to as the gemstone of the rainbow. Multicolored and bi-color tourmaline are the norm and very rarely found in clear or colorless. Watermelon colored gemstones are color green at one end and pink on the other, hence its name.

Tourmaline is a crystal is distinguished by its three prism face, which has no other common minerals. Tourmaline will in a wide variety of colors. Iron will tourmaline black or brown in color, magnesium are brown to yellow crystals of lithium rich blue screen, green, red, yellow or pink.

Tourmaline rough

Tourmaline is found in pegmatite veins in the underlying bedrock is at an angle of 45 degrees the center of the earth. Two main geological characteristics of granite and marble, have the ability to form crystals of tourmaline. Only 5 percent of the stones precious stone found are quality grade.

Tourmaline will change the electrical properties when heated. It becomes slightly magnetized and has been used in the Netherlands to attract ash and can be used to clean the tubes. This gem has a hardness of 7 to 7.5 which is a good candidate for jewelry. You can withstand years of use, but you may want to avoid steam cleaning or heat.

Multi Tourmaline Rough

Tourmaline was discovered in the U.S. near Paris, principal in 1820. Two students came to take a shortcut to an uprooted tree with dozens of green tourmaline crystals near the roots. Tourmaline is the stone precious first commercially mined in the United States. This precious stone found in other major areas such as Newry Hill, Mount Mica and Plumbago Mountain. At present most of the old mines are open to collectors of fees.

Himalaya Mine in San Diego County, California allows treasure hunters in search of precious tourmaline. For a fee of $ 75 in the search engines have access to the area of mine tailings throughout the day. Fill the bucket to the mine and then take their treasures potential for the selection area and searching through the rubble of the gemstones.

The Himalaya Mine too sell waste bucket to take home for $ 50 to $ 100, depending on the quality of the tailings. You can also buy a bag of clay pocket "on the Internet for $ 20 plus $ 10 for shipping so you can screen at your leisure.

The underground mine consists of five miles of steep passages that were dug in the past 100 years, so there are a lot of waste can be filtered. If you decide to dig in the Himalaya mine will have to take a shovel, bucket, gloves, hat and a ¼ inch screening booth.

In 1989, a vivid blue tourmaline is found in Brazil. It was given the name Paraiba tourmaline and is in popular demand so the price suddenly more than $ 10,000 per carat. Nearly all colors can be found in Brazil, but blue is still the number one must have. A cut Polished gem quality tourmaline in the United States may require up to $ 1,000 per carat.

Happy treasure hunting.

About the Author:

David Cowley has created numerous articles on Treasure Hunting. He has also created a Web Site dedicated to Treasure Hunting. Visit Treasure Hunting

Article Source: ArticlesBase.com – Treasure Hunting for Tourmaline

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