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Wednesday, December 03, 2008
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Our Featured Gemological Article

Collecting Prescious And Semi-Prescious Gemstones


By Lee MacRae


Why would anyone collect items like loose gemstones, you ask? Well to begin with gemstones are extremely beautiful. And just like natural diamonds their value increases over time. Many people love to collect and work with each and every one of the 150 varieties available. Follow along as we look at the hobby of collecting loose gemstones.


The first thing you need to do is to get yourself some books on gemstones. You want to understand everything there is to know about your new hobby. The more you understand about the hobby of gemstones the less likely you are to make a mistake. You'll know exactly what to buy.


The first item to take into account should be gemstone color. You'll want the stone that is as close as possible to the pure spectrum colors. This means violet, orange, yellow, green, blue, and red. The prices for very pale or very dark precious and semi precious stones are less per carat.


Gemstone cut is one of the most important traits in evaluating gemstones. The gemstone must be cut correctly to reflect light properly. A gemstone with an improper cut will not reflect light in a consistent way. The hue, tone and color saturation will always look inconsistent.


Next to look at is the clarity of the gemstone. Clarity is the term that refers to the internal conclusions or flaws of a stone being considered. Any large flaws are visible to the naked eye with the others needing a 10X magnification.


Gemstones are often categorized according to their size aspect because it is more uniform than carat weight. But different gemstones may be the same size but different carat weights and consequently, different pricing structures. This factor comes from the difference in relative density or specific gravity depending upon the chemical composition and crystal structure type Normally a one carat brilliant round diamond of typical proportions will be approximately 6.5 mm in diameter. A ruby that is the same size will weigh in at 1.55 carats instead.


Collecting various gemstones can create an enjoyable hobby and pastime. And there is such a variety when it comes to gemstones. You can start collecting gemstones like Obsidian, Topaz or Zeolite (Thomsonite) and then try others. The varieties are nearly endless. And if you like a hands on hobby you can go hunting for raw gemstones. Just in the United States in Pennsylvania you can find Amethyst, Almandite Garnet and Pyrope Garnet, Beryl, Sunstone and Moonstone.


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Gemstones For Sale



Hints On natural fancy yellow diamonds

The world of gemstones is vast, fascinating, and at times intimidating. When we
are shopping for gemstones, there is a lot to know. Sometimes we want something
beautiful and valuable for ourselves, sometimes we want to give a special gift
to someone else. Whatever the case, we gemstone shoppers want to make sure that
what we are buying is as valuable as we think it is. This means that we need to
learn about the different kinds of gemstones and how much they usually cost. We
need to learn about gemstone treatments and imitations. And an especially
important task is understanding why pieces of gemstone jewelry can be worth very
different amounts even though they contain the same gemstones.
There are many factors that influence the value of gemstones. When shopping for
gemstones, it is important to understand these factors. The most common ones are
color, clarity, size and cut. Most of these factors have an impact on most
gemstones, but on some more than others.
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Colorless when pure, the zirconium silicate takes on various shades due to
impurities. The most popular zircon-color is blue. Most blue gemstones come in a
pastel blue, but some exceptional gems have a bright blue color. Zircon is also
available in green, dark red, violet, yellow, brown, and orange. The brown
varieties, mostly found in South Asian nations, are heat treated in order to
produce colorless and blue zircons. In the gemstone trade some terms refer to
different colored zircons:
Hyacinth: yellow, yellow-red to red-brown zircon
Jargon: straw-yellow to almost colorless zircon
Starlight: rich, slightly greenish blue zircon variety, created by heating
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All The Latest News From The natural fancy yellow diamonds World

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Fri, 07 Nov 2008 23:53:00 GMT
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