(Reuters) A group of men wearing mudded khaki pants and rubber boots are digging into hard clay with their shovels at the bottom of a pit in Russia’s Kaliningrad region some 1200 km (750 miles) west of Moscow. The men are searching for amber – 50-million-year-old fossilized tree resin. Kaliningrad region, enclaved between Lithuania and Poland on the Baltic Sea shore, is home for 90 percent of world’s amber deposits and some of them lay just […]