If you go shopping for platinum jewelry, you are going to find an awful lot of it. You’ll find it listed in online local ads and on online auction sites. You might even find platinum engagement rings listed in ads in local newspapers. And if you peruse the display cases at an antique store or mall, you might see that is labeled as platinum.

Platinum is bright, shiny and resistant to tarnish. It can be used to make beautiful jewelry, labware, and even the outside casings of implantable medical devices. For those reasons, many people believe that the only way to produce a piece of platinum - be it a ring, a lab crucible or anything else - is to cast it in one piece.

Have you heard that half of all marriages end in divorce? If you do a little research online, you will learn that statistic is not true. It seems that in about 1980, the divorce rate hit an all-time high of 40%, and is be declining today. That could be because more young people are skipping marriage - and if you don’t get married, how can you get divorced?

We watched the royal wedding. Did you?

And while we were caught up in the wonderful spectacle of two young people starting their married life together, we couldn’t help noticing that a lot of jewelry was on display too. (We assume that most of the gold and gemstones we saw were the real thing, given the wealth of the celebrities in attendance and the serious nature of the event.)

Platinum is used in jewelry, thermocouples, catalytic converters and many other places.

That should mean that it is easy to find bits and chunks of platinum scrap that we can recycle profitably for you, correct? Well yes, there is a lot of the metal out there waiting for you to discover. But you must know where to look.

We enjoyed “10 Most Famous Engagement Rings in History,” a post on the TheKnot.com blog. It offers entertaining descriptions of 10 of the most jaw-dropping engagement rings ever given. One was a Van Cleep & Arpels engagement ring that JFK gave to Jacqueline Bouvier. It boasted both a 2.84-carat emerald and a 2.88-carat diamond. Not too shabby. Other astonishing rings are mentioned in the blog post too, including immense rings given to Mia Farrow by Frank Sinatra, to Marilyn Monroe by Joe DiMaggio, to Elizabeth Taylor by Mike Todd, to Beyoncé by Jay Z, and even to Queen Elizabeth II by Prince Philip. We can hardly keep up.

Have you ever failed to realize that an old ring, an old lab vessel, or a bit of white metal scrap was made of platinum? If you have, you are not alone. Because platinum is a white metal, it is easy to mistake it for silver or even something as low-end as polished pewter, stainless steel or even aluminum. Here are three facts that can help you recognize platinum more quickly and reliably.