Rare diamond within a diamond discovered in Serbia
The company that has found the diamond is yet to estimate its worth.
Scientists have unearthed a rare type of diamond that contains another diamond trapped inside it. This is the first of its kind, estimated to be around 800 million years old, although its actual age is yet to be confirmed.
The 0.62 carat (0.124 grams) diamond has been found in a Russian mine in Siberia. It has been named the Matryoshka Diamond after Russia’s famous nesting Matryoshka Dolls. It has a maximum dimension of 4.8 x 4.9 x 2.8 millimetres and the smaller diamond - which is 0.02 carats (0.004 grams)- measures 1.9 x 2.1 x 0.6 millimetres.
What Makes This Unique?
Diamonds usually come with flaws and objects or minerals trapped inside it. But, according to Russian diamond mining group ALROSA, this is the first time that the flaw, or object trapped within a diamond is another diamond itself.
"The most interesting thing for us was to find out how the air space between the inner and outer diamond was formed," says Oleg Kovalchuk of ALROSA's Research and Development Geological Enterprise.
How Could This Have Been Formed?
Scientists suggest that the process might have occurred in the Earth's mantle. One of the scientists says, "a layer of porous polycrystalline diamond substance was formed inside the diamond because of ultra-fast growth, and more aggressive mantle processes subsequently dissolved it. Due to the presence of the dissolved layer, one diamond began to move freely inside another, just like a matryoshka nesting doll."
The company that has found the diamond is yet to estimate its worth. "As far as we know, there has been no such diamond in the history of global diamond mining," Kovalchuk said. "This is really a unique creation of nature, especially since nature abhors a vacuum. Usually, in a case like this, the minerals would be replaced by others without forming a cavity" he added.