How to check gold?

Long ago, back in the 3rd century BC,great and all known Archimedes, it was possible to solve the problem of the authenticity of the golden crown. Nowadays, such tasks are no less relevant, in spite of the fact that there are samples and all kinds of tags we can not be sure that we have gold on our finger or on our neck.

Of course, to solve such a problem it is best to turn to a jeweler, but how to check gold, if there is no such possibility?

We offer to your attention several ways to check gold at home with a high probability.

Authentication

1. Check by iodine. It is necessary to put a drop of iodine on the surface of the gold product and hold it for 3-5 minutes, and then gently wipe the iodine with a tissue. If the color of the metal remains unchanged, then you can rejoice, you have the gold.
2. Magnet check. Some smart dealers apply a thin layer of gold to a cheaper metal. Spend a magnet over the surface of gold, if gold does not react - it's real gold without impurities (precious metals - non-magnetic). But it happens that the product is made of copper or aluminum, and they are also not magnetized. In this case, just estimate the weight of the product. And all because tin and copper belong to light metals, which means that the product will be much lighter than the same one, gold.
3. Check with vinegar. If you do not have a magnet and you still do not know how to check gold for authenticity, use plain vinegar. Just hold a short gold in the vinegar, if it darkens - it's a fake.
4. Check with a pencil. The main task of this pencil is to stop the blood. But besides that, it can be perfectly used to check gold - draw a small dash on a wet product with a pencil and wipe it off after a few seconds. If the product remains a trace, then you again have a fake.
5. Verification by gold. Each house, one hundred percent, has a gold ring or pendant in which you do not doubt. Having such a product, use it to check the authenticity of gold - draw a small line on any hard object, and then do the same with the product that causes your doubt. If both items remain the same trace - they are the same sample.

In addition to verification for authenticity, manyinterested in how to test the gold sample, because you can not always believe the brand on the product. Unfortunately, the testing of the SAMPLES of gold is a long and trembling occupation, and at home it is almost impossible. And yet, we will describe to you the ways that jewelers use.

Testing of a gold sample

• The first method is the use of needles. To begin with, jewelers take needles made from different gold samples. Afterwards, a micro-scratch is applied to the product, and further nitric acid is poured into this scratch, and based on the color that remains in this scratch (comparing it with the needles), it is already concluded that a metal sample is being sampled.
• The second way is to use the assay stone. Such a stone should be with a matte ground surface. Next, the product is gently carried around the stone, and then the left trace is compared with the tone of the standards' strokes of all known samples.

I hope we helped you and suggested how to check gold for authenticity at home. Successful shopping for you and genuine products!