This precious metal comes in 8, 9, 10, 12, 14, 18, 20, 22 and 24 karat out of which 24 karat is considered pure gold. Seasoned goldsmiths and some octogenarians can judge the purity of gold with their sense organs. They reveal that something that is too lustrous or too dull may be a fake gold. Today gold jewelry comes in various colors ranging from vibrant yellow to pale yellow and for this reason it is better to use a gold testing equipment to ascertain the actual amount of gold in a mass.
Traditionally a black square touchstone and acid is used a gold testing equipment. The gold piece is rubbed against the stone and then acid is dropped on the streak mark on the surface of the stone. If the streak fades in color when it comes in contact with acid, either it is made of gold with lower karat or not gold at all. If the streak reveals no sign of fading, it is pure gold. With this experiment, one can determine whether a piece of metal is gold or not. If you want to ascertain the percentage of gold in a solid mass then you need an electronic gold testing equipment.
Gold is the most preferred metal when it comes to investment and for this reason people buy gold bricks, coins, biscuits and jewelry. When needed, you can easily convert your gold items into hard cash. There are many companies which offer gold exchange and gold for cash schemes. They value your gold on the results of their own testing. It’s better if you could buy latest gold testing equipment and test your gold at home before calling a gold exchange company. Since you know the actual value of your gold pieces, no one can swindle your money.
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