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Laboratory grown synthetic gemstones have essentially the same appearance and
optical, physical, and chemical properties as the natural material that they
represent. Synthetic gemstones produced in the United States include alexandrite
, coral, diamond, emerald, garnet, lapis lazuli, quartz, ruby, sapphire, spinel,
and turquoise. Laboratory grown simulants have an appearance similar to that of
a natural gemstone but have different optical, physical, and chemical properties
.
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Latest Article On GemstonesStarting The Hobby Of Gemstone Collecting
By Lee MacRae
Many people, young and old, say collecting
loose gemstones or
loose diamonds is their favorite hobby. They simply love the beauty and the colors of the wide array of gemstones found worldwide today. This article will discuss a number of things you need to know in starting in this hobby.
To begin with you need to learn all you can on the various gemstones available. This will help you to know what exactly you're looking for and prevent you from wasting your money. Without the proper knowledge you can make costly mistakes.
Color is a very important part in giving value to a gemstone. The closer a color is to its purer spectral value the more valuable it is. Traditional spectral colors are orange, green, yellow, Violet and blue. Colors that tend to be paler or darker tend to be less valued.
Gemstone cut is very important and factors into appraisal of diamonds but along with your gemstones. A precision cut gemstone showcases the pure color of the stone, diminish any inclusions, and exhibits good overall symmetry and proportion. One way of determining the excellence regarding the cut of the gemstone is if it is able to reflect light on a consistent level over the stones complete surface. If the gemstone is cut to shallow most of this light were refracted away instead of reflecting inside. That will make the gem seem washed out and windowed.
Gemstone clarity is the next item to consider. When we talk of clarity it relates to the absence of flaws or blemishes inside the stone. The gemstone without flaws 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 a jewelers diamond gemstone loupe 10X for viewing stamps, coins, beads as well as gems.
Next up are size and weight. Except for corals and pearls, all gemstones are priced by the carat. One carat equals a 0.2 grams. You should know however that weight and size are not always equal and gemstones. The density and specific gravity can differ in stones. If you have a diamond that weighs 1.00 carats, you will find a similar sized sapphire or ruby would weigh 1.20 carats.
Getting involved in collecting gemstones can be very enjoyable and also rewarding in the long run. You can start small and don't have to spend a lot of money and yet you can build a very exquisite collection. Many people love to take vacations to go looking for gemstones. For example in Hawaii you can find Peridot and Coral. And if you like to travel farther you can find opal in Coober Pedy, Andamooka or Mintabie in South Australia, topaz in Torrington, New South Wales, Australia or hunt the sapphire fields in Anakie, Rubyvale, Sapphire, Glenalva, The Willows, Inverell or Glen Innes in Queensland, Austalia.
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Carnelian is a wonderful orange stone. It is used for great beads, cabochons and
cameos. Try some carnelian jewelry for nice orange accents to your wardrobe.
Carnelian is usually ranges from bright orange to reddish orange. The shades of
red are due to iron oxide. Carnelian has a hardness rating of 7.
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Amber is commonly yellow or orange. Some amber has been found with red, green,
blue, violet, and black hues. Amber is known for having inclusions such as
insects, air bubbles, or pine needles from when it is formed. The more unusual
the inclusion, often the more expensive the piece. Amber has a hardness rating
of 2.5.
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Our Featured Gemstone ArticleSo You Want To Collect Loose 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
loose gemstones or
loose diamonds. Some people even begin to visit different local areas to look for rough gemstones. Some of them will even tumble or finish off the gemstones themselves. If you have an interest in this hobby follow along as we discuss the different aspects of this hobby.
The first thing you need to do is to visit the library and get some books. You want to learn as much as you possibly can about your new hobby. The more you understand about gemstones the wiser will be your purchases. You need to be as informed as possible.
One of the first things you look at Is gemstone color. Top grade gemstones exhibit colors similar to the purest spectral colors of orange, green, yellow, Violet or blue. Gemstone colors that are somewhat muted or too dark can lower the value.
The cut of your gemstone is easily one of the most important aspects in determining gemstone value. The stone has to be cut correctly to reflect light properly. A gemstone with the poor cut will be muted or washed out. Color tone, saturation, and hue will never be consistent.
A third consideration is the clarity of the stone under consideration. This refers to the purity of the stone or the absence of internal inclusions, particles or spots within the crystal. Needless to say, stones with no flaws will make a gemstone very valuable.
Another consideration is the duo of weight and size. Due to their nature gemstones vary and specific gravity or density. Weight and size are not necessarily equal across the board. Take the example of a diamond that weighs 1.00 carats and an equal sized Sapphire would weigh more than 1.20 carats. An equal sized Emerald would be 0.95 carats while an Alexandrite gemstone 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 gemstones that are too fragile or too large to be used in jewelry. Look at each loose gemstone and think of it as a piece of art, a miniature sculpture to be treasured for its unique nature and vibrant colors. And unlike many hobbies where you have to buy everthing you can use vacation time to actually hunt for raw gemstones in stead of buying. In the US in California you can find Agate, Benitoite, Californite, Diamond, Citrine, Tourmaline, Abalone Pearl, Kunzite, Chrysopras And in Canada you can hunt for opal in the Okanagan, British Columbia or amazonite (microcline) near Eganville, Onttario along with zircons in Sebastopol and Brudnell Townships in Renfew County, Ontario. Think of gemstone collecting for the great hobby it is.
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More Information On loose blue diamonds
Benitoite is only found in San Benito County, in Southern California. Just a few
hundred carats are found each year. A lot of this, maybe even a majority, is
kept in it�s natural form. Very little gets cut and offered for sale. Because it
is fairly well known and quite beautiful, the larger pieces demand prices around
$1,000 per carat. This is quite a bit less than a diamond or ruby, but much more
that other rare gems.
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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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The most important mine for Tiger Eye is in South Africa. Tiger Eye is the
anniversary gemstone for the 9th year of marriage. Tiger Eye is used for
focusing the mind. Tiger Eye was thought to be all seeing due to its appearance.
It has been said that Tiger Eye offers protection during travel.
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