Platinum and silver colors are relatively similar and inexperienced people can easily confuse them. Sohow to identify them? Ask jewelry experts for the most professional advice. There are five approaches to identify the platinum and silver.
Comparison: Platinum is seen as gray-whitewith naked eyes, with relatively hard texture, hardness 4.3. Silver is seen as white with naked eyes, with more delicate and smooth texture, hardness lower than platinum, equal to 2.7.
Seal engraving: as each piece of jewelry must be engraved with seals, so they are all platinum when you see Pt, Platinum or Plat. Likewise, they are all silver when you see S or Silver. By the way, the copper silver symbol is SF.
Weighing: If you see a fuzzy seal, or the seal has been cut, you can adopt this trick. The platinum has a higher density 21.4 kg / m³ and the silver has a lower density 10.49 kg / m³. The silver weight is only half of platinum under the same volume, so it’s pretty obvious to identify by weighing.
Cremation: we adopt this trick when the material is low in weight and can’t discern its weight. The color of platinum stays the same when cooled down after heating or fire while the color of silver will turn scarlet.
Chemistry: grind the platinum against the touchstone and drip some X and hydrochloric acid compound. If we see marks, then it’s platinum. The difference of color shows different percentage. Drop the said compound to silver, the marks will disappear.
It’s easy to identify platinum and silver with these five tricks. In case you are confused about them, try the above tricks!
1) Some coins and jewelry will have a stamp with the numbers “999.” This indicates that the jewelry is made of pure silver.If you see a stamp with the numbers “925” followed or preceded by the letter “S,” you have sterling silver. Sterling silver is 92.5% pure silver that’s mixed with another metal alloy, usually copper.
2) Platinum is a very rare and expensive metal. Therefore, all platinum jewelry will be marked to show authenticity. Look for the words “Platinum,” “PLAT,” or “PT” followed or preceded by the numbers “950” or “999.” These numbers refer to the purity of the platinum, with “999” as the most pure.
Run a magnet over the jewelry. Most pure precious metals aren’t magnetic. Therefore, if you place a magnet near the jewelry, you shouldn’t see any movement at all. If you do, the metal isn’t pure silver or pure platinum.
Some silver and platinum alloys are magnetic. Therefore, a lower quality silver or platinum piece of jewelry may be magnetic.
If you have a piece of jewelry with a stamp that’s attracted to a magnet, see a reputable jeweler to verify its authenticity