Connect with us

Press Releases

Matryoshka Diamond Found in Yakutia

The stone resembles a traditional Russian Matryoshka doll.

mm

Published

on

Matryoshka Diamond Found in Yakutia

(PRESS RELEASE) An unusual diamond with another diamond moving freely inside was mined in Yakutia at the Nyurba mining and processing division of ALROSA. Due to its peculiarity, the stone resembles a traditional Russian Matryoshka doll. According to the experts who have studied the find, this is the first such diamond in the history of global diamond mining.

According to scientists, diamond may be over 800 million years old. Despite its complex structure, it weighs only 0.62 carats (0.124 grams) and has maximum dimensions of 4.8 x 4.9 x 2.8 mm. The internal cavity volume is 6 cubic mm and the internal crystal volume is 1.6 cubic mm with an estimated weight of 0.02 carats (0.004 grams). The inner diamond has a tabular shape and dimensions of 1.9×2.1×0.6 mm.

Specialists of the Yakutsk Diamond Trade Enterprise discovered this unusual diamond during a sorting process. They handed it over to the Research and Development Geological Enterprise of ALROSA. There it was studied using several methods, including Raman and infrared spectroscopies, as well as X-ray microtomography. Based on the results of the study, the scientists made a hypothesis about how the crystal was formed. According to them, there was an internal diamond at first, and the external one was formed during the subsequent stages of growth.

“The most interesting thing for us was to find out how the air space between the inner and outer diamonds was formed. We have two main hypotheses. According to the first version, a mantle mineral captured a diamond during its growth, and later it was dissolved in the Earth’s surface. According to the second version, 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 zone, one diamond began to move freely inside another on the principle of matryoshka nesting doll,” said Oleg Kovalchuk, Deputy Director for innovations at ALROSA’s Research and Development Geological Enterprise. – As far as we know, there were no such diamonds in the history of global diamond mining yet. This is really a unique creation of nature, especially since nature does not like emptiness. Usually, some minerals are replaced by others without cavity formation.”

Advertisement

SPONSORED VIDEO

Wilkerson Testimonials

If It’s Time to Consolidate, It’s Time to Call Wilkerson

When Tom Moses decided to close one of the two Moses Jewelers stores in western Pennsylvania, it was time to call in the experts. After reviewing two candidates, Moses, a co-owner of the 72 year-old business, decided to go with Wilkerson. The sale went better than expected. Concerned about running it during the pandemic, Moses says it might have helped the sale. “People wanted to get out, so there was pent-up demand,” he says. “Folks were not traveling so there was disposable income, and we don’t recall a single client commenting to us, feeling uncomfortable. It was busy in here!” And perhaps most importantly, Wilkerson was easy to deal with, he says, and Susan, their personal Wilkerson consultant, was knowledgeable, organized and “really good.” Now, the company can focus on their remaining location — without the hassle of carrying over merchandise that either wouldn’t fit or hadn’t sold. “The decision to hire Wilkerson was a good one,” says Moses.

Promoted Headlines

Most Popular