Russian state diamond company ALROSA has decided to leave the fancy diamond is a "doll" in his collection of rare finds. It has been found in recent years, the diamond in the shape of a skull and a stone, similar to a soccer ball. A collection of rare stones ALROSA is not intended for sale, the company said.
Produced at the Nyurba GOK the diamond, which freely moves inside yet another diamond, according to experts, met for the first time in the history of diamond mining. Usually in such cases some minerals are replaced with other without formation of a cavity. At the same time, the diamonds are small gatica inclusion, but the voids in this volume of the crystals has never met.
Age of the diamond "dolls", according to scientists, may be more than 800 million years. Despite its complex design, it weighs only 0,62 carats (0,124 grams) and has a maximum size of 4.8×4,9×2.8 mm. determined that the internal cavity is 6 mm3, and the volume of the inside of the crystal is 1.6 mm3 with an estimated weight of 0.02 carats (0.004 grams). The inner diamond has a tabular shape and dimensions of 1.9×and 2.1×0.6 mm.
Scientists from Scientific-research geological enterprise, ALROSA put forward various hypotheses about the origin of this diamond. To date, the most likely is the version that both diamond – both internal and external – was formed at the same time.
