Varvara Dmitrieva: The jewelry industry of Yakutia is distinguished by its creativity, unique cultural code and conservation of traditions

Varvara Dmitrieva, Associate Professor and Head of the Department of Precious Stones and Metals Processing Technologies of the North-Eastern Federal University, told Rough&Polished about the results of the Forum of jewelry Craftsmanship and the prospects...

16 april 2024

Valery Budny: There is no strategy and legislation in Russia enabling the full cycle processing of precious raw materials within the country

Valery Budny, Head of the Jewelry Russia program and CEO of the JUNWEX media holding, told Rough&Polished about the results of the meeting and pressing issues in the precious metals and precious stones (PMPS) and the jewelry sectors.

11 april 2024

Paul Zimnisky: Natural diamonds face the risk of eroding their appeal if constantly discounted

New York-based independent diamond and jewellery analyst and consultant Paul Zimnisky told Rough & Polished’s Mathew Nyaungwa in an exclusive interview that the industry should do away with discounts. He said the industry should treat natural diamonds...

01 april 2024

Edahn Golan: Lab-grown diamond prices to continue declining

In an exclusive interview with Rough&Polished's Mathew Nyaungwa, Edahn Golan, proprietor of the eponymous Edahn Golan Diamond Research and Data, predicted that the prices of lab-grown diamonds would continue to decline, especially at the retail and...

25 march 2024

ADPA’s Ellah Muchemwa: G7 restrictions to bring extra costs from diamond mining to retail

The African Diamond Producers Association (ADPA), which has openly registered its disdain for the G7’s rough diamond trade restrictions, is of the opinion that the move will bring extra costs on all stages, from mining to retail. ADPA executive...

18 march 2024

Arctic researchers discover four new species of mollusks

15 january 2024

Scientists of the Federal Research Center for Integrated Arctic Studies of the Ural Branch of the Russian Academy of Sciences have identified two genera and discovered four new species of freshwater mollusks of the Sphaeriinae subfamily.

Spheriines, small bivalve mollusks widely distributed in freshwater bodies of different continents, play an important role in ecosystems: they perform biofiltration of water and serve as a food source for fish and birds.

Spheriines are considered one of the few groups of bivalves that have adapted to the conditions of the Arctic, gazeta.ru writes with reference to the Ministry of Education and Science of Russia.

Due to the short Arctic summer lasting just over two months, the mollusks begin breeding process later and finish it earlier.

Until now, the taxonomy of these mollusks has been controversial. The study allowed to resolve the contradictions. As a result of a large-scale revision of scientific data, four new species have been described. They were found in the Kolyma River basin, in the reservoirs of the Caucasus, Kyrgyzstan and Morocco.

Zoologists have also found out that the group of spheriines formed about 126 million years ago on the territory of modern China, then began to settle.

Alex Shishlo for Rough&Polished