Will Platinum become encrusted?

[toddbbq]

Quick question as I know old silver becomes encrusted over time in the salt water. Gold doesnt but what about platinum? I have only found three platinum rings but they were all recent drops.

 

[OBN]

I don't think so, the 3,........ I have found on old beach's have been just like High K gold. And I have dug gold that was stained dark, and even a Light black crust. One was 9k and the others 10k, never from 14k up..other then the the rear joint.

10k Gold

 

[toddbbq]

Thanks OBN. I found a large encrusted silver ring and at first while cleaning it the ring was not looking like silver but after 4 hours of Hot peroxide soaking, removing crust and polishing the silver finally showed its true color.

 

[ron lord]

plat. will not tarnish or oxidize

 

[toddbbq]

plat. will not tarnish or oxidize

Thanks Ron

 

[Octopulse]

Platinum is a "Noble" metal....one that resists corrosion and oxidation.

 

[paolo059]

I found old platinum ... they lose only a little shine, they do not oxidize.