Our Featured Gemological Article
How To Collect Loose Gemstones
By Lee MacRae
Gemology is a term referring to the art, profession and science of evaluating and identifying gemstones from loose gemstones to natural diamonds. Many people take up gemology more as a hobby. They become interested in collecting and evaluating loose diamonds or loose gemstones. You'll even find some that like to travel to different areas to look for raw gemstones. Some hobbyists will learn to cut or tumble the gemstones they find. If this hobby interest you then read along as we show you the various factors in gemstone collecting.
The first thing you need to do is to visit the library and get some books. You want to understand as much as possible about your new hobby. The more you understand about each kind of gemstone the wiser will be your purchases. You'll know exactly what to look for in a quality stone.
To start with, an important aspect in gemstone evaluation is color. Gemstones are the most intensely colored natural material available on earth. These materials are so related to their color that they've even had their names combined with associated colors. Everyone knows ruby red, emerald green, sapphire blue, aquamarine, turquoise, and jade green Gemstones will have a higher value when they are equal in color to the spectral colors of orange, green, yellow, violet and blue. They are valued much less when they are lighter or darker than the pure spectral color.
The cut of the gemstone is an important aspect to consider in evaluating gemstones. The gemstone must be cut correctly to reflect light properly. A gemstone with the poor cut can't reflect the light consistently over its surface. The color hue, color tone and saturation will never look consistent.
The next factor to look at is the stone's clarity. This is talking about the gemstones purity or the lack of internal inclusions, internal particles or spots within the crystal structure. Obviously, stones with a lack of flaws will make a gemstone very valuable.
Gemstones are often categorized according to their size aspect because of being more uniform than carat weight. But two different gemstones may be of the same size but have different carat weights that result in different prices as well. This is due to the difference of relative density or specific gravity depending upon the chemical composition and crystalline structure. Normally a one carat brilliant round diamond with standard proportions will be approximately 6.5 mm in diameter. A comparable round brilliant ruby of the same size and proportions will weigh approximately 1.55 carats.
Getting involved in collecting gemstones can be very enjoyable and rewarding in the long run. It doesn't have to be very expensive and yet you can buy some very beautiful items. Many people love to set aside vacation or weekend time to go looking for gemstones. For example in Florida you can find Chalcedony and Conch Pearl. And if you like to travel farther you can find opal at Lightning Ridge in NSW, Austalia, topaz in Mt Surprise or O'Briens Creek in Queensland, Australia or check out the Moonstone regions in Moonstone Hill, Queensland, Australia.
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Tips On natural fancy yellow diamonds
Today, some of the finest emeralds can be found in South America. They can be
found in other parts of the world with the most important sites being in Africa,
Pakistan, Afghanistan and Madagascar. The Mines of Cleopatra were the earliest
emerald mines on earth. There was emerald mining as early as 2000 B.C. These
early mines were abandoned in 1750, briefly revived, and then finally left to
nature in the 1920.s.
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Emeralds are hard but are sensitive and prey to flaws or inclusions. They
require a lot more care than most other gemstones. The flaws occur through the
trials imposed by nature, and sometimes the engineering process developed by man
. The identification of fissures, however, does serve a useful purpose. The
flaws help to weed out artificial emeralds from the real ones. Inclusions
actually prove an emeralds authenticity. Refraction and density of the stones
vary from the location where they are found. Emeralds are found buried in their
parent rock.
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Our Latest Gemological Article
Starting To Collect Loose Gemstones
By Lee MacRae
Many people, young and old, say collecting semi-precious and precious gemstones like loose diamonds or loose gemstones is a passionate hobby. Many people have a great love of the various gemstones you can find just about everywhere in the world. Read long as we examine the things you need to know in starting in this interesting hobby.
The first step in becoming a gemstone collector the wise way is by acquiring knowledge about them. By visiting a local library you can find books on the subject that will make you an informed buyer.
The chief thing you need to look at is the color of the stone. You'll want the stone that is as close as possible to the pure spectrum colors. The spectral colors are blue, green, yellow, orange, red and violet. Generally, the prices very pale or very dark precious and semi precious stones are lower than the vibrant colors.
Gemstone cut is an important factor to consider when you consider a gemstone's value. The gemstone must be cut with precision to reflect the light properly. A gemstone with the poor cut will not reflect the light consistently. Tone, color saturation, and color hue will always look inconsistent.
Our next consideration is the issue of gemstone clarity. The aspect of clarity refers to the internal flaws ( known as inclusions) or the outside blemishes of the gemstone. Larger flaws can be seen with the unaided eye with others requiring a 10X magnification.
Next to consider are weight and size. Save for pearls and corals, all gemstones are valued by the unit called the carat. One carat is the equivalent of 0.2 grams Be aware however, that weight and size are not the same in gemstones. Density or specific gravity can vary in gemstones. If you have a diamond that weighs 1.00 carats, you will find a similar sized sapphire or ruby would weigh 1.20 carats.
Though you may find gemstones used a lot in jewelry, they are perfectly good collectibles in their own right. Actually there are many interesting and attractive gems that are too fragile or too large to be used in jewelry. Look at each stone and Think of it as a mini sculpture or piece of art to be highly treasured for its beautiful colors and the finish you apply to it. And in this hobby you don't have to always lay out cash because you can find your raw materials through field trips In the United States in Florida you can find Chalcedony and Conch Pearl. And in Canada you can find nephrite jade in Dease Lake, British Columbia or labradorite on Tabor Island, along with Ammolite, a rare gemstone found only in southern Alberta. Think of gemstone collecting for the great hobby it is.
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More Info On natural green diamonds
Rubies and sapphires are different colored varieties of the mineral corundum.
Now corundum is a fairly common mineral. Second only to diamond in hardness it
has been mined extensively for abrasives. The emery on your emery boards and
sand paper is corundum. Gem quality corundum is quite a bit rarer, consisting of
only a percent or so of all the corundum found. The most common of the gem grade
corundum is blue sapphire. Sapphire comes in every color of the rainbow and the
other colors are rarer than the blues. This may be a bit of a surprise as the
blue ones are so valuable. However, the law of supply and demand comes in here.
Most of the people wanting a sapphire are looking for a deep blue gemstone, not
something yellow or green. Hot pink sapphires and the pinkish orange variety
know as padparasha do demand a high price in the market place. Generally though,
it is the demand for blue gems that fuels the pricing here.
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Obsidian is natural glass. It is beautiful and jet black. Snowflake obsidian is
gray and black; mohagony obsidian is brown and black. All three varieties make
wonderful jewelry. Obsidian has been used for jewelry, mirrors, tools and more
for hundreds of years.
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