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alvin · 03-30-2015, 11:03 PM

So, the police and business owners came back to the Checking Service. This time, the inspector totally cut the jewelry into thin slices and checked them under high-X microscopes. They found some white micro crystal structures the cuts. Then, they used complex chemical method to identify what's that -- the white contents turned out being a type of metal called "ruthenium". This type of metal's melting temperature is much higher than gold, regular torch could not tarnish it. Spectrum analyzer that they used earlier could only check surface, but could not find this type mixture. The gold contents of the jewelry is about 50% (fake maker has to use some gold, so the color is yellow), and ruthenium's price is much lower than gold.

So, that's the story of fake gold. Even a group of professionals were cheated. Water is deep.

03-30-2015, 11:03 PM	#5
alvin User Join Date: Jul 2007 Location: US Posts: 3,843 Thanks: 132 Thanked 729 Times in 438 Posts	So, the police and business owners came back to the Checking Service. This time, the inspector totally cut the jewelry into thin slices and checked them under high-X microscopes. They found some white micro crystal structures the cuts. Then, they used complex chemical method to identify what's that -- the white contents turned out being a type of metal called "ruthenium". This type of metal's melting temperature is much higher than gold, regular torch could not tarnish it. Spectrum analyzer that they used earlier could only check surface, but could not find this type mixture. The gold contents of the jewelry is about 50% (fake maker has to use some gold, so the color is yellow), and ruthenium's price is much lower than gold. So, that's the story of fake gold. Even a group of professionals were cheated. Water is deep.