I plan to travel to Russia. What are the specialties there?

Specialty amber, purple and gold, mink, caviar, vodka, dolls, beautiful women and so on. . .

Nothing deserves more detailed introduction than amber and Zijin:

Amber is a kind of resin fossil, which was buried underground tens of millions of years ago and formed through certain chemical changes. It is an organic mineral. Amber has a variety of shapes, the surface often retains the lines produced when the resin flows, and bubbles and ancient insect or plant debris are often seen inside. Often accompanied by coal seams. Amber is a hydrocarbon containing succinic acid and amber resin. Its chemical composition is C 10H 16O, of which 79% is carbon, 10.5% is hydrogen, 10.5% is oxygen, and sometimes it contains a small amount of hydrogen sulfide. The shape of amber is mostly pie-shaped, kidney-shaped, tumor-shaped, slender water-drop-shaped and other irregular shapes. It belongs to amorphous body. Most of the colors are yellow, orange, brown, brownish yellow or dark red, and light green, yellow and lavender varieties are extremely rare. Grease luster, transparent to translucent. The refractive index is 1.539- 1.545, multicolor. Hardness 2-3, density1.1-1.16g/cm3. Brittle, cleavage-free, conchoidal fracture. Amber is an organic substance, which softens when heated to 150℃ and melts at 250℃-300℃, giving off an aromatic rosin smell. Amber is soluble in alcohol. It usually contains insects, seeds and other inclusions.

Kaliningrad, the westernmost state in Russia, has concentrated more than 90% of the world's amber reserves. It is an "enclave" in Russia and is known as the "Amber Capital".

Russian Zijin, platinum and gold are also called the world's three largest gold. Russia is the main producing area of Zijin, and the rest are also distributed in Turkey and other countries, but Russian Zijin is the most famous in the world, especially Russia, which has a vast territory and rich resources. Among gold jewelry, Zijin is the most European jewelry. Due to exquisite craftsmanship, even the same brand of Zijin jewelry will show different colors and brightness due to different craftsmanship. In some Russian shops, there are many people selling Zijin jewelry, but what is usually put on the counter is imitation, the price is about tens of yuan, and it will fade after wearing it for a while. Only when customers ask for pure Russian Zijin will the store come up with real Zijin jewelry. The serial number of pure purple and gold jewelry is 585, which is equivalent to what we call 24K, and the rest is 375, which is equivalent to our 18K. Unlike gold and platinum, Zijin has a gold content as high as 585%, high hardness and bright color, which is slightly inferior to 375.