Collecting Prescious And Semi-Prescious Stones
By Lee MacRae
Why would anyone collect items like loose gemstones, you ask? Well for one thing they are very beautiful items. And like their higher counterpart, natural diamonds their value increases over time. Many hobbyists love to collect and show case the wide variety of gemstones available today. Read long as we discuss the hobby of loose gemstone collecting.
Right at the start you need to read up on the wide variety of stones available. This will help you to know the properties of each stone so you buy the right items. Without the proper knowledge you can make costly mistakes.
To start with, an important aspect in gemstone evaluation is 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'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 become higher in value the closer they come to the natural spectral colors of yellow, blue, violet, green, orange and red. They are valued much less the farther they deviate from the pure natural color.
The cut of your gemstone is an important factor to consider when evaluating gemstones. The cut has to be done with precision to reflect the light properly. A poor cut will not reflect light consistently over its entire surface. Tone, color saturation, and color hue will never look consistent.
A third consideration is the clarity of the stone under consideration. This is talking about the purity of the gemstone or the lack of internal inclusions, spots, or particles inside the crystal. Needless to say, stones with no flaws will make a gemstone very valuable.
Another consideration is the duo of size and weight. 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 a ruby of equal size would weigh 1.20 carats. An equal sized Emerald would be 0.95 carats while an Alexandrite would be about 1.23 carats.
Although gems are frequently used in jewelry, they are perfectly good collectibles in their own right. In fact, there are many attractive and interesting gems that are too fragile or too large to be used in jewelry. Here's a suggestion -- don't think of a gem as a component of jewelry; consider it as a piece of art and value it for its beautiful colors and the finish you apply to it. And unlike many hobbies where you have to buy everthing you can find your raw materials through field trips In the US in Montana you'll find Agate, Sapphire, Beryl, Amethyst, Smoky Quartz, Obsidian, Tourmaline and Garnet. And if you travel to Canada you will find nephrite jade in Mount Ogden, British Columbia or amazonite (microcline) near Lac St-Jean, Quebec as well as hessonite garnet in Asbestos, Quebec. Think of collecting gemstones as a great hobby and pastime.
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The moonstone is a variety of feldspar that exhibits a type of shimmer or �adularescence�. This is the floating, billowy effect you see when the stone is rotated. It ranks 6 to 6.5 on the Mohs Scale of Hardness. The moonstone is the shared birthstone with the pearl and alexandrite for the month of June. It comes from Sri Lanka, Australia, Africa, Brazil and India.
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Charcas, San Luis Potosi in Mexico is world reknown for it's Danburite the large
clear crystals are easily found on the mineral markets. Topaz is also found here
and can be quite nice. A variety of grossular known as "Raspberry Garnet" is
found in Coahuila and another garnet gem found in Mexico is andradite which
forms iridescent green gemstones. Another green gem is olivine and it is mined
in the Chavira peridot-olivine mines in Chihuahua.
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There is more to a gemstone than meets the eye. Gemstones come in many colours and have varying characteristics, therefor using visual identification to identify gemstones can be unreliable. When identifying a gemstone it is sometimes difficult to know if the stone is genuine or synthetic. The only reliable method of identifying gemstones is to take it to a qualified Gemmologist, they have the expertise and specialised equipment required to give the best advice.
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How To Start Gemstone Collecting
By Lee MacRae
Why collect loose gemstones you ask? For many people it's because they've been sought for their beauty for many centuries. And just like natural diamonds their value increases over time. Many hobbyists love to collect and work with the nearly 150 types of gemstones found today. This article will examine the loose gemstones hobby.
The first thing you need to do is to visit the library and get some books. You want to know as much as you possibly can about your new hobby. The more you learn about the hobby of gemstones the better off you'll be. With adequate knowledge you are less likely to be fooled.
The first criteria you need to evaluate is stone color. Without a doubt, gemstones are the most intensely colored naturally occurring materials you can find. Gems have become so synonomous with color, they've even had their names combined with associated colors. Without a doubt you will recognize sapphire blue, ruby red, jade green, aquamarine, emerald green or turquoise. Gemstones become higher in value when they are equal in color to the spectral colors of violet, blue, green,, orange and red. They drop in value the farther they are from the spectral color.
Cut is one of the all-important 4Cs and factors into appraisal of diamonds but gemstones as well. An excellent cut will highlight the pure color of the stone, lessen any inclusions and show off its symmetry and proportions. One excellent method to determine the precision of gemstone cut is to consider how consistently it reflects the light over its entire surface. If the gemstone is cut to shallow much of the light will refract out of the gem instead of reflecting inside the gemstone. That will make the gem seem washed out and windowed.
The clarity of a gemstone is our next factor. When we talk of clarity it relates to the absence of flaws or blemishes inside the stone. A gemstones that is normally found to be clean is obviously worth more. To determine the flaws not seen with the unaided eye requires a 10X gemstone loupe or gemstone microscope. Serious hobbyists will buy an inexpensive 10X gemstone or jewelers loup for examining coins, stamps and of course gemstones.
Next on the agenda is the duo of weight and size. Due to the fact gemstones can vary greatly in density and specific gravity. Weight and size are not necessarily equal across the board. If a diamond of a certain size weighs 1.00 carats then an equal sized Sapphire would weigh more than 1.20 carats. An Emerald of equal size would be approximately 0.95 carats while an Alexandrite gem stone would came in at 1.23 carats.
Getting involved in collecting gemstones can give you an enjoyable pastime and also rewarding in the long run. It doesn't have to be very expensive and yet you can build a very exquisite collection. Many people loved to spend weekends to go hunting gemstones. For example in Colorado you can find Beryl, Aquamarine, Phenacite, Garnet, Amethyst, Agate, Citrine, Pyrite, Rose Quartzcomma
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More Info On loose cultured diamonds
The stunning 167.97-carat Mackay Emerald was mined in Muzo, Columbia. The
largest cut emerald in the National Gem Collection, it is set in an Art Deco
diamond and platinum necklace designed by Cartier Inc. In 1931, Clarence H.
Mackay presented the necklace as a wedding gift to his wife, Anna Case, a prima
donna of the New York Metropolitan Opera from 1909 to 1920. The piece was
donated to the Smithsonian Institute by Mrs. Anna Case Mackay in 1984.
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Despite the immense popularity of diamonds, colored gemstones have always been among the most popular and expressive forms of jewelry. The bright colors of colored gemstones give each a unique personality, and personal tastes in color often dictate preferences for particular stones.
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So You Want To Collect Gemstones
By Lee MacRae
The term gemology refers to the science, art and profession of identifying and evaluating gemstones from loose gemstones to natural diamonds. A number of people taken up this profession as a passionate hobby. They become interested in collecting items like loose gemstone or natural diamonds. You'll even find some that like to travel to different areas close by or to other countries to look for rough gemstones. Some of them will even tumble or finish off the gemstones themselves. If this hobby interest you follow along as we reveal the various factors in gemstone collecting.
To start off right you need to learn all you can on the various gemstones available. You'll find it very helpful to know the properties of each stone so you buy the right items. Get the answer to questions like how, where and what to buy.
To start with, an important aspect in gemstone evaluation is color. Without a doubt, gemstones are the most intensely colored naturally occurring materials you can find. Gems have become so synonomous with color, 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 the closer they are to the colors in the spectrum of orange, green, yellow, violet and blue. They are valued much less the farther they deviate from the natural color.
Gemstone cut is an important aspect to consider when buying a gemstone. The stone has to be cut with precision to reflect the light properly. A gemstone with the poor cut will be muted or washed out. The color hue, color tone and saturation will never be consistent.
A third consideration is the clarity. This means the purity of the stone 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 listed according to their size criteria because of being more uniform than carat weight. But two different gemstones may be the same size but have different carat weights that result in different prices as well. This factor comes from the difference in relative density or specific gravity depending upon the materials chemical composition and crystal structure type 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 in at 1.55 carats.
Although gemstones are normally used for jewelry, they are a great hobby and pastime as well. Actually there are many interesting and attractive gemstones who that are too fragile or too large to be used in jewelry. Here's a suggestion -- don't think of a gem as a component of jewelry; consider it as a piece of art and value it for its unusual nature and for the craftsmanship of the artisan who shaped it. And in this hobby you don't have to always lay out cash because you can use vacation time to actually hunt for raw gemstones in stead of buying. In the United States in New Hampshire you can rock hunt for Beryl, Rock Crystal and Garnet. And in Canada you can hunt for nephrite jade in the Frances Lake area in the Yukon Territory or labradorite on the adjacent islands and coastal area of Labrador and even the unique deep blue beryl in Canada's Yukon Territory. Think of collecting gemstones as a great hobby and pastime.
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Hints On buying loose diamonds
Even the hardest gemstone variety can be vulnerable to breakage if it has
inclusions that weaken the crystal structure. Exercise common sense: if you have
a ring set with a softer gem variety or an included stone, take it off before
strenuous activity. Even the hardest gemstones like Diamonds, Rubies and
Sapphires can shatter with a single well-placed blow especially if they have
inclusions, which weaken the crystal structure.
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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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How To Collect Gemstones
By Lee MacRae
Why would someone go to the trouble of collect loose gemstones? Well to begin with gemstones are extremely beautiful. And just like natural diamonds they can appreciate in value over time. Many people love to collect and work with each and every one of the 150 varieties available. Read long as we look at the hobby of collecting loose gemstones.
The first thing you need to do in beginning this hobby the intelligent way is through the power of knowledge. By visiting a local library you'll find numerous books on gemstones that will prevent you from making mistakes at the start.
To start with, an important aspect in gemstone evaluation is color. Gemstones are the most intensely colored naturally occurring materials you can find. Gemstones are so related to color that they have even lent their names to specific colors. Everyone knows ruby red, emerald green, sapphire blue, aquamarine, turquoise, and jade green Gemstones are valued much higher when they equal the colors in the spectrum of red, orange, yellow, green, blue, and violet. They are valued much less the more they move away from the spectral color.
Gemstone cut is the second most important factor to consider before buying. How precise the cut is is the factor that determines the amount of light the gemstone stone will reflect. It will fully determine the brilliance of the stone and its final value.
Next up is the issue of gemstone clarity. Clarity is the term that refers to the internal flaws ( known as inclusions) or the outside blemishes of a stone being considered. Normally large flaws you can usually see with your naked eye with others needing to be magnified 10X
The next factors to consider our size and weight. Except for corals and pearls, all gemstones are valued by the unit called the carat. A carat is equal to 0.2 grams. However you should know weight and size are not the same in gemstones. Density or specific gravity can very. Take a diamond that weighs 1.00 carats and you will see that a similar sized sapphire or ruby would weigh 1.20 carats.
Getting involved in collecting gemstones can give you an enjoyable pastime and also rewarding in the long run. You don't need to spend a lot of money and yet you can buy some very beautiful items. Many people loved to spend weekends to go hunting for raw gemstones. Take the example of the United States. In Utah You can find Topaz, Garnet, Petrified Wood, Jasper and Obsidian. Or you can take the time to travel and find opal in Coober Pedy, Andamooka or Mintabie in South Australia, topaz in Beechworth, Victoria or hunt in the garnet fields in Fullarton River in Queensland, Australia.
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Learn More About loose black diamonds
There are many very beautiful stones that appear to be good candidates for jewelry but in fact are easily damaged and nearly impossible to cut because of the structure of the crystal. The Moh's hardness scale is the accepted gauge for determining a stone's overall durability.
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In nature, the emerald is one of the rarest and most valuable of all gems. A fine quality emerald of good brilliant green color and clarity is more valuable than a diamond. The word �emerald� comes from a sanskrit word meaning �the green of growing things�. Nature takes about 1 million years to create an emerald. It is the birthstone for May and ranks 7.5 to 8 on the Mohs Scale of Hardness.
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Film listings - San Francisco Guardian
Sun, 17 Aug 2008 14:10:00 GMT
Body of War Phil Donahue's and Ellen Spiro's documentary about the war in Iraq and soldier Thomas Young, who was paralyzed while serving in Baghdad. (1:27) Clay , Shattuck ...
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