Gold Dust Testing Methods


Not all hidden Japanese treasures in the Philippines are composed of processed gold bars, golden buddhas, old coins, jewelries and other precious metals. There are actually raw deposits and "gold dust" is just one among them. Most amateur THs (treasure hunters) don't know anything about this, thus they end up throwing them away thinking that it's just probably an ordinary kind of sand or dirt.

What are gold dusts?

Gold dusts are tiny pieces of gold with some mixtures of sand, dirt and rocks. Although, the small particles of gold can be hardly visible unless you perform some tests. The test involve separating the unwanted materials from the glittery gold.

Most of you (my readers) claims that you recovered dusts consisting of shiny particles but you do not have the knowledge or experience on how to identify it if they are gold dusts. So to help you out, let me share you this following simple methods on how to test a certain glittery particle of dusts if they are "authentic gold" or  just "pyrites".

5 Simple Methods to Test Gold Dusts

1. Sunlight Method

Take a few sample of the gold dusts that you recovered and expose it under the sunlight. An authentic gold will "shine" but it will not "sparkle". If the particles sparkled under sunlight, it means that you have found pyrites (also known as "Fool's Gold").

2. Magnet Method

You need a strong magnet for this method to work. What you have to do is to rub the magnet over the samples. You have to know that gold is "not magnetic" which means that they won't be attracted by the magnet.

3. Nitric Acid Method

Drop some of your sample into a nitric acid. If there's no reaction it means that your sample is an authentic gold dusts. Before you perform this test, make sure that you wear protective gears (eyewear, long sleeves and heavy-duty rubber gloves) because nitric acid is a powerful toxic type of chemical.

4. Gold Panning Method

Put some samples into the pan then remove the large visible rocks with your hands.

Add some small amount of water into the pan. Once done, tilt the pan at an angle then rotate it in a circular motion or you can simply shake it. This process will loosen the sand, clay and other unnecessary particles. You may use your hand to scrape off those unwanted materials.

Continue with the process of cleaning the sediments. And from time-to-time, hold your pan under sunlight to help you spot the gold dust. If you have poor eyesight, you may want to use a magnifying glass.

Gold Panning

If it happens that none is found, you have to take another sample and repeat the same process. Perform this test for at least three times on samples taken from different portions of your suspected raw gold dust deposit.

5. Vinegar Method

Assuming that you panned your gold dust successfully, you can confirm its authenticity by using a Vinegar (a much safer alternative than the Nitric Acid). Drop a few vinegar into the sample. Make it sure that the sample is completely submerged from the vinegar.

After 3 to 5 minutes, check your sample. If the color of your sample turned black or dark it means that you found a pyrite. Otherwise, you just uncovered a gold dust deposit.