Physical and chemical properties of gold fineness of gold. Antonov, There is no man who does not see gold in jewelry. Gold, abbreviated as Au-from the Latin Aurum, D.i. Mendeleev periodic table is in the same group with silver and copper. Despite this, its chemical properties much closer to the chemical properties of platinum group […]
Category: gold discovery
gold discovery gold prospecting gold extraction methods how gold was discovered, where gold was discovered, when gold was discovered, gold in history. Gold rush. gold mining tools risk of gold extraction separation of gold from gold-mining minerals.
Alloys of gold and silver amalgam Gold amalgam Gold is the metal more easily combined with mercury, obtaining amalgams by direct binding of the two metals. If gold comes from the reduction of some of its salts, as the precipitate is very thin, the combination does not verify with ease, because gold powders float long […]
Group of geophysicists from New Zealand and the United States, exploring the underground reservoirs of the North Island, discovered large deposits of gold and silver. Volcanic zone, located near Lake Taupo, only preliminary estimate contains 6 major fields that could yield billions in profits annually. Concentration of precious metals in groundwater is quite high: Gold-ratio […]
How to find extract and process gold, We talk a lot about gold-how to invest in physical gold or metal futures, gold mining companies, young companies, Chinese gold mining company. Perhaps most importantly, we talk a lot about supply and demand of gold. But we rarely go into details. What is gold’s proposal? Namely, where […]
Always during economic instability people preferred to keep their savings in money and in precious metals. And the most popular asset among them has always been and remains the gold. Many today are becoming gold products. But you can always be sure that it is not gold-plated fake? Or that there is no inconsistency between […]
All about black gold, white gold, rose gold, red gold, green gold, purple and blue gold, What is green gold? Green Gold is an alloy of gold and silver, without using copper, such gold actually looks like. Among the many jewelry metal Green Gold stands out for its special enchanting elegance. Jewelry and artworks.
There is a well-established expression-pure gold. Pure means red. Red Gold? It turns out that if you heat very pure gold, What is white, yellow and red-gold? What is the difference? What is gold better and better? All about black gold, white gold, rose gold, red gold, green-gold, purple and blue gold.
In our time of need to know and be able to distinguish, as silver from other metals. Silver is a noble natural white metal, which is widely used both in industry and at home. Often it is made cutlery, tableware, heirlooms, jewelry, candlesticks, frames. Distinguish silver from other cheap but similar metals very difficult than often used by fraudsters and pawn shops with a dubious reputation.
Underwater treasures found at the bottom of the Atlantic Ocean, and still the richest shipwrecks were not found until now, amazing ancient Egyptian Treasures which are displayed for the first time after it was discovered underwater, More recently, most serious treasure hunters have started working underwater, where modern technology allows access to wrecks containing valuables the treasures of gold and jewelry case and not worth the price. Spectacular ancient Egyptian treasures are to be exhibited for the first time having been discovered underwater in the submerged ruins.