Gemstones Scene Information
Our Featured Gemological WriterThe Hobby Of Loose Gemstone Collecting
By Lee MacRae
Gemology is the art, profession and science of evaluating and identifying rocks known as natural diamonds or loose gemstones. A number of people taken up gemology as a hobby. They collect and evaluate loose gemstones or loose diamonds. A number of these hobbyists start to visit various locations close by or even in other countries to look for rough gemstones. Some of them will even tumble or finish off the gemstones themselves. If this hobby interest you read along as we show you the things you should know to start this hobby.
First off you need to read up on each of the gemstones out there. This will help you to know the properties of each stone and prevent you from wasting your money. Without the proper knowledge you can make costly mistakes.
The chief thing you need to factor in is the color of the gemstone. You'll want the gemstone that is as close as possible to the pure spectrum colors. We are talking about blue, green, yellow, orange, red and violet. Generally, the prices very pale or very dark precious and semi precious gemstones are lower than the vibrant colors.
Cut is one of the all-important 4Cs and factors highly into the appraisal of not only diamonds but gemstones in general as well. A precision cut gemstone highlights the pure color of the stone, diminish any inclusions, and show off its symmetry and proportions. One way to determine the precision in the cut is to look at how evenly it reflects light over its entire surface. If the stone is cut on the shallow side much of the light will refract out of the gem rather than reflecting inside. That will make the gem seem washed out and windowed.
The clarity in a stone is our next factor. Clarity refers to the absence of flaws or blemishes inside the stone. A gemstones that is normally found to be clean is obviously valued highly. To see flaws beyond with the eye can see you need a gem microscope or gemstone clarity magnifier. Most hobbyists will buy a jewelers diamond gemstone loupe 10X for examining coins, stamps and of course gemstones.
You will note that gemstones are categorized according to their size criteria since 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 pricing structures. This is due to the nature of gemstone difference regarding relative density or specific gravity depending upon the chemical composition and 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 instead.
Though you may find gemstones used a lot in jewelry, loose gemstones are great for collecting. In fact, there are many attractive and interesting gemstones that are too fragile or too large to be used in jewelry. Take each loose gemstone and 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 use vacation time to actually hunt for raw gemstones in stead of buying. In the United States in Montana you'll find Agate, Sapphire, Beryl, Amethyst, Smoky Quartz, Obsidian, Tourmaline and Garnet. And in Canada you can find nephrite jade in the Frances Lake area in the Yukon Territory or pink and dark blueish spinels in Wakefield, Quebec as well as black spinel in Burgess and bathhurst Townships in Ontario. Take up gemstone collecting and you won't regret it.
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Quartz that is formed of multigrained microcrystals, not just of one single crystal, is called chalcedony. The name is applied to many well-known varieties of gemstones. They are found in all 50 states and come in many colors and color combinations. Unlike quartz, chalcedony does not look clear and glassy but waxy and translucent. It refers specifically to translucent white, blue, pale grayish-blue, purple, pink, yellow, orange, red, or solid-colored chalcedony other than carnelian, sard, or Chrysoprase, which are naturally-colored chalcedony varieties. Most chalcedony used in jewelry, as with the stones used by James Avery, is color-enhanced for a more consistent color. It ranks 6.5 to 7 on the Mohs Scale of Hardness which means it is fairly durable to wear as jewelry.
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An aspect of a stone�s color that can effect its value is its rarity. For
example, a golden-pink topaz (Imperial Topaz) is more valuable than a blue topaz
, all other characteristics being equal. This is because it is harder to find
topaz of this color.
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Fossicking is mostly carried out by searching through the mine overburden dumps, most miners disregard or miss smaller pieces of Opal. Where these pieces may not be commercially useful the hobbyist sees good value. Trucks from the mines drive up onto the dumps and unload 5 or 10 cubic metres of mine tailings each time. Grawan Opal FieldPeople who noodle for a living are ever present and watch each truck load carefully as it is unloaded; as a general rule-"no Potch no Opal". If Potch is present then the load is surrounded by the avid noodler and the pile is systematically gone through in the hope to find some colour of Black Opal. The only way to find Opal is to be in the group sorting the pile of tailings; this can be competitive at times.
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More loose gemstone beads Information
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