The history of human use of silver

The history of human use of silver can be traced back to the third millennium BC. Silver utensils were discovered in the Mesopotamia civilization of Southwest Asia. What is the development of people's use of silver? The history of human use of silver It can be traced back to the third millennium BC, and silver vessels were discovered in the Mesopotamia civilization of Southwest Asia. What is the development of people's use of silver? In the fifteenth and sixth centuries, Europeans discovered the New World, and the British transported back a large amount of precious metals from North America. In addition, Britain itself made great improvements in silver making technology. Therefore, the United Kingdom became an important town of silverware during this period. During the same period, Spain produced silver in its own country and had huge silver sand mines in South American colonies such as Mexico, Bolivia and Peru, which also made Spain an important place in the silverware market. In the twentieth century, Italy emerged as the world leader in silver products manufacturing. In the 1990s, Italy processed an average of thousands of tons of silver each year, and about 60% of it was exported. Natural silver ore is usually in the form of lumps and crystal grains, but it may also be in the form of rigid dendritic aggregates. The newly unearthed or newly polished silver is particularly bright, shining with silver-white metallic luster; but when exposed to the air, it will quickly produce a layer of black oxide, which will make the surface lose its luster. In addition, the hardness itself is not high enough to make jewelry in pure form, and it is often co-cast with other metals or covered with gold on the surface. How does the history of human use of silver develop? Foreign silver, an alloy of gold and silver, which has been used by people since ancient Greece, only contains 20-25% silver. Standard pure silver contains 92.5%, or higher, pure silver (usually some copper). Both of these alloys are used as the standard to define the silver content. How does the history of human use of silver develop? The world's main silver mining areas are in South America, the United States, Australia and the former Soviet Union. The country with the largest silver yield is Mexico, which has been mining since about 1500. The top-grade natural silver, which is produced in the form of twisted metal filaments, is produced in Kongsberg, Norway. Silver Jewelry Knowledge Daquan baike/cate50/1/ Previous: Ten Rules for Wearing Silver Jewelry Next: Ten Ways to Wear Silver Jewelry