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Date Created: 12/18/15
Identifying Gem Stones Stones, gems or crystals are all minerals that over a period of time have become clear or coloured classifying them into what they are. You may be curious to know what stone you have with you. Here are some tips to identify the type of gemstone. The first step is to check and see if what you have really is a gemstone. Coloured rocks, ores, fossilized wood also look similar and one can get misled by its pretty appearance. If the stone appears sandy or rough then it is definitely not a gemstone. Also gemstones are not malleable i.e. Easily shaped by hand or hammer and so check your stone for this. Pearls are not classified under gems. The most important check for a gemstone is its hardness. It is not the be all but it does help in classifying the stone. You can get a hardness kit along with the samples of other minerals. There are a lot of scales for measuring the hardness of stones but the most commonly used scale is 'Mohs' scale which rates the stone from one to ten depending on its hardness. If the mineral you use scratches the surface of your stone, then the mineral is harder than your stone. By trying various minerals on your stone you can identify the hardness of your stone. Stones tend to break along certain planes according to their structure. You can strike your stone and compare its line with the cleavage chart to identify what stone you have. If possible chip a small piece of your stone and study its crystalline structure with the help of a microscope or just use a magnifying glass without breaking the stone. Each stone has its own unique structure of crystals that vary depending on the atomic and molecular structure. Make a mark on a ceramic plate with your gemstone. A lot of stones leave a streak behind and this can be compared to different charts and help further in identification. There are more tests done by experts like the refractive index, specific gravity of the stone, dispersion of light and changes in colour. You could also test the gravity of the stone by placing it in a cup of water. Once you have done all this make a summary and write your conclusion. Check with an expert if your conclusions are correct. Click Here for Great Deals on Loose Colored Gemstones
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