Gemstones

By Author: Mohan Chen
Total Articles: 434
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Today, women can not think of jewelry without considering natural gemstones. There are so many of them, across so many different categories that it gets quite confusing to pick out the right one which can look good with your attire. Considering the sheer range that is out there, you might want to know a way in which it is possible to decide on the exact kind of stone that will be apt for your requirements. Fortunately, there are ways to find this out today, many of which are listed below.

To begin with, let us start off with precious gemstones. This is something that you should not be particularly confused about buying, since all of us have some kind of precious stone associated with our birthdays. If for some reason you are not content with the one that is listed for your birth date, you can look at other options. This is one of the costlier variety of stones, and you might have to spend a larger amount of money in trying to find out the right one for your needs. In the end, you should be able to find the right one with relative ease.
If the precious ones are out of ...
... your reach, then you can still go to natural gemstones of a different kind. This would be the semi precious ones, which are still worthy of consideration. When you opt for semi precious gemstones, you can suddenly take your pick from a lot more variety and could even possibly pick something for a fraction of the price. This price advantage is one of the chief reasons why people settle for these kinds of stones.
It is also possible to mix and match and you can pick up some loose gemstones. Make sure you buy them from a reputed source though, as it is quite easy to get cheated and end up buying something that is far more expensive or extravagant. In fact, natural gemstones which are purchased in loose from different vendors will have different levels of quality, which is something that you would definitely not be completely happy with.
In the end of the day, look back at the occasion for which you are shopping these particular natural gemstones for and think if they are worth it or not. Unless the occasion really deserves it, there is no particular reason that you might want to think about getting these kinds of stones at exaggerated prices. You can just as easily settle for something cheaper and still look good in your attire. Make sure that you look at all options before deciding on any one thing. Considering the amount of money that you will be doling out on these stones, you should be sure that you are at least getting a good deal in the end.

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Usually, gemstones form below Earth's surface. They can stay buried for many millions of years. But Chatham and other scientists are creating gemstones on their own. They do this by mimicking the processes that occur underground or by coming up with entirely new processes. Lab-made gems have the same appearance and basic chemical structures as the natural ones, and they can be produced in months or even days.
Because these gems are created in the laboratory, researchers can control the gems' formation very carefully. Some lab-grown gems are even purer or tougher than natural gemstones. And the gems are good for more than just jewelry. They can be used to make tools, such as lasers and drills. Lab-made diamonds could even help scientists improve electronic devices or detect dangerous bacteria in drinking water.
Most gemstones are hard pieces of mineral. In nature, some minerals form underground when hot liquid rock — magma — cools down. Some of the atoms and molecules in the liquid start attaching to each other in repeating patterns, creating a structure called a crystal. If the mineral is beautiful, durable and rare, it is often considered a gemstone. Gemstones also form when minerals are heated up, squeezed, or exposed to new chemical elements.
When volcanoes erupt or mountains form, the gemstones get pushed closer to the surface. Or, over time, the rocks above wear away, uncovering the gems underneath.
To make a gemstone in the lab, researchers can imitate the Earth's process. Each gem has a recipe with certain chemical ingredients. For example, emerald can be made with aluminum oxide, beryllium, silica, and bits of chromium. Rubies contain aluminum oxide and a little chromium.
Scientists usually melt the ingredients or dissolve them in water or other chemicals. The mixture can get as hot as 1,000 degrees Celsius — 10 times hotter than the temperature needed to boil water. Then the liquid is slowly cooled down. The cooling takes energy away from the atoms and molecules in the mixture, and they start to come together into a crystal. The crystal actually grows, as if bricks were arranging themselves into a house.