Information On Gemstones
Our Latest Gemstone ArticleStarting The Hobby Of Gemstone Collecting
By Lee MacRae
Many people today say collecting various
loose gemstones or
loose diamonds is a favorite pastime. They love the colors and the beauty of the various gemstones you can find just about everywhere in the world. Read long as we examine the things you need to know when starting this gemstone hobby.
Right at the beginning, what you need is to get some books from the library or bookstore. You want to learn as much as you possibly can about your new hobby. The more you learn about gemstones the wiser will be your purchases. You'll know exactly what to look for in a quality stone.
The first criteria you need to evaluate is stone color. It is a fact that gemstones are the most intensely colored naturally occurring materials you can find. Gems have become so synonomous with color, they have even lent their names to specific colors. You've no doubt heard about emerald green, ruby red, sapphire blue, jade green, turquoise or aquamarine. Gemstones are valued much higher when they equal the colors in the spectrum of red, orange, yellow, green, blue, and violet. They become less valuable when they are lighter or darker than the pure spectral color.
Gemstone cut is very important and is used not only to appraise diamonds but gemstones in general as well. A good cut showcases the natural color of the gemstone, lessen any inclusions and show off its symmetry and proportions. One way to determine the precision in gemstone cut is to consider how evenly it reflects light over the stones complete surface. If the stone is cut on the shallow side much of the light will refract out of the gem rather than reflecting internally. Gemstone color will be washed out.
The next factor to look at is the clarity. This refers to the gemstones purity or the absence of internal inclusions, internal particles or spots within the crystal structure. Obviously, stones with a lack of flaws will make a gemstone very valuable.
Next item to look at is the duo of size and weight. Because gemstones vary and specific gravity or density. Weight and size are not equal for each and every stone. If a diamond of a certain size weighs 1.00 carats then a sapphire of equal size would weigh 1.20 carats. An emerald stone would be about 0.95 carats and an Alexandrite stone would be about 1.23 carats.
Collecting various gemstones can create an enjoyable hobby and pastime. And there is such a variety in precious and semi precious stones that you can collect. You can start collecting gemstones like Lapis lazuli, Sapphire or Iolite for instance. The varieties are nearly endless. And if you like a hands on hobby you can go gemstone hunting and find the raw materials instead of buying them. Just in the United States in Alabama you can find Beryl, blue and yellow; Smoky Quartz and Hematite.
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Sapphire has been mined in Australia for over 100 years and Australian mines
have produced commercial quantities for at least 50 years. For several decades
recognition of the quality and quantity of sapphire produced in Australia has
been concealed by many international vested interests in an effort to control
the supply and price of sapphire gems. As a result the best Australian sapphire
has often been sold as being "Ceylon" or "Thai" material and this has concealed
the very high quality and outstanding colour range of Australian Material.
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Weighing 138.7 carats, the Rosser Reeves Ruby is one of the world's largest and
finest star rubies. This Sri Lankan stone is renowned for its great color and
well-defined star pattern. Advertising mogul Rosser Reeves, who donated the
piece to the Smithsonian in 1965, carried it around as a lucky stone, referring
to it as his baby. He often stated that he had acquired the stone at an auction
in Istanbul in the mid-1950s. He actually bought the stone from Robert C. Nelson
Jr. of New York who was acting on behalf of Firestone & Parson of Boston.
Firestone & Parson were selling the stone for Mr. Paul Fisher of New York. Mr.
Robert Fisher, Paul's father, had bought the ruby at an auction in London in
1953. At the time the ruby then weighed just over 140 carats, but was very
heavily scratched, and a few carats were removed in the repolishing. The
repolishing also helped to center the stone's star. Articles in the New York
World-Telegram and The Sun in 1953 mentioned this fabulous gemstone.
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The Andamooka Opal is a famous opal which was presented to Queen Elizabeth II in
the 1950s on the occasion of her first visit to Australia. It was discovered in
Andamooka, South Australia, an historic opal mining town. The opal was cut and
polished by John Altmann to a weight of 203 carats (40.6 g). It displays a
magnificent array of reds, blues, and greens and was set with diamonds into an
18 carat (75%) palladium necklet
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Gemological Information ArticleCollecting Prescious And Semi-Prescious Stones
By Lee MacRae
Many people today say collecting
loose gemstones or
loose diamonds is their favorite hobby. Many people have a great love of the wide array of gemstones found around the world today. Read long as we examine the things you need to know in starting in this hobby.
To begin with your first priority is to visit the library and get some books. You want to understand everything there is to know about the subject of gemstones. The more you understand about each kind of gemstone the less likely you are to make a mistake. You will know exactly what you are looking at.
The first item to take into account is stone color. You'll want the stone to be as close as possible to the pure colors of the spectrum. We are talking about blue, green, yellow, orange, red and violet. In general terms, the prices of very dark are very pale stones are less per carat.
The cut of the stone is the next factor to take a look at. The precision of cut determines the amount of light the gemstone stone will reflect. It will ultimately determine the brilliance of the stone and its final value.
The next factor to look at is the clarity of the stone under consideration. This refers to the gemstones purity or the absence of internal inclusions, internal particles or spots inside the crystal. Without a doubt, zero flaws are hard to find and make your stones very valuable.
Next item to look at is the duo of weight and size. Due to their nature gemstones can vary greatly in density and specific gravity. Weight and size are not equal for each and every stone. If you have a diamond that weighs 1.00 carats an equal sized ruby would weigh 1.20 carats instead. An Emerald of equal size would be approximately 0.95 carats while an Alexandrite would be about 1.23 carats.
Collecting gemstones can be very rewarding hobby. And there is a wide range and variety when it comes to gemstones. You can start collecting gemstones like Chrysocolla, Pyrite or Clinohumite for example. The opportunities are seemingly endless. And if you like to save money but love vacations you can go hunting for raw gemstones. Take the example of the US. In Maryland you can search for Beryl and Clam Pearl.
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There are more than 3800 minerals known to exist, with only a very small proportion, about 20, of these suitable to be cut and polished into gemstones. Barcaldine QueenslandFor a mineral to qualify as a gemstone, it must be hard enough to survive abrasion, which immediately eliminates a great number of the minerals known today.
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Gemstones Scene Info
How To Collect Gemstones
By Lee MacRae
Gemology is a term referring to the art, profession and science of evaluating and identifying gemstones from
natural diamonds to
loose gemstones. A number of people taken up this profession more as a hobby. They become interested in collecting
loose diamonds or
loose gemstones. Some people even begin to visit different areas nearby or in other countries to look for raw gemstones. Some even tumble or learn to cut their own gemstones. If this hobby interest you then read along as this article discusses the things you should know to start this hobby.
The very first step in starting the hobby of collecting gemstones the wise way is through the power of knowledge. By visiting a local library you can locate all you need to know about the subject that will make you an informed buyer.
The first criteria you need to evaluate is stone color. It is a fact that gemstones are the most intensely colored naturally occurring materials you can find. These materials are so related to their color that they've even had their names combined with associated colors. You've no doubt heard about emerald green, ruby red, sapphire blue, jade green, turquoise or aquamarine. Gemstones are valued much higher they closer they are to natural spectral colors of red, orange, yellow, green, blue, and violet. They are valued much less when they are lighter or darker than the natural color.
The cut of your gemstone is one of the most important traits in determining gemstone value. The stone has to be cut in a way that reflects light back to the viewer. A poor cut will never be able to reflect light consistently. Color saturation, color hue and color tone will never be consistent.
Another factor to look at is the clarity of the gemstone. This means the purity of the gemstone or the lack of internal inclusions, spots, or particles 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 it is more uniform than carat weight. But two different gemstones may have the same size but differ in carat weights and as a result different prices as well. This is due to the difference in relative density or specific gravity depending upon the materials chemical composition and characteristic crystalline structure. For example, a one carat round diamond with normal proportions is approximately 6.5 mm around. A ruby that is the same size will weigh in at 1.55 carats.
Collecting gemstones can be a great hobby. And there are so many different types in precious and semi precious stones that you can collect. You could try collecting Malachite, Tanzanite and other varieties of zoisite or Zeolite (Thomsonite) for example. The opportunities are seemingly endless. And if you like a hands on hobby you can find gemstones for yourself instead of buying. Just in the United States in New Hampshire you can rock hunt for Beryl, Rock Crystal and Garnet.
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Non-crystalline opals have two categories designated as Opal-AG and Opal AN, but
they are usually grouped together as Opal-A. Non-crystalline is amorphous
without real or apparent crystalline form.
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Opal is October's birthstone and is an elegant sparkling gemstone. Opal is a
soft gemstone so wearing it in pendants, necklaces and earrings is ideal. The
fabulous fire of an opal has made this stone a favorite of many.
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Gemological Information Article
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Learn More About natural blue diamond
As with all gems, protect peridot from scratches and sharp blows. Also avoid
large temperature changes (such as leaving it be a heater vent or in a hot car).
Do not clean peridot in a home ultrasonic cleaner.
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Agate will chip and crack rather easily though it has a hardness rating of 7.
Agates occur in nodular masses. When you split open these rocks you find
beautiful banding. As such, agate slices are often used for bookends or coasters
. Agate comes in most colors.
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Tanzania has been a significant diamond producer for several decades, with the
bulk of production coming from the Williamson Diamonds Mine at Mwadui where
commercial production began in 1925. Tanzania is endowed with various species of
coloured gemstones including the beautiful Tanzanite (blue zoisite). Other
gemstones mined in the country include ruby, rhodolite, sapphire, emerald,
amethyst, chrysoprase, peridot and tormaline. Recently, a major alluvial
occurrence was discovered in the southern region of Ruvuma, Mtwara and Lindi.
Varieties include chrysoberyl, spinels, sapphire, garnets, zircons and diamonds.
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