Carborundum is actually the first man-made mineral in the world. In the mid-1880s, Edward g. Acheson, an inventor / scientist who had been Thomas Edison's assistant manager of European interests, set up his own experimental laboratory in Monongahela, Pennsylvania. He had a crazy idea that he could make synthetic diamonds by dissolving carbon into corundum (NATURAL alumina) with the high heat generated by an electric furnace. Of course, his experiment failed to produce diamonds, but in fact the substance he produced was second only to diamond in hardness and abrasion resistance. He named the product "Emery" because it came from a compound of carbon and corundum. A few years later, chemical analysis confirmed that the substance was actually silicon carbide.

Acheson and a group of investors from Pennsylvania founded the emery company in Monongahela in 1891 (he liked the sound of the name). They produced a range of silicon carbide abrasives. In 1893, Acheson wanted to move to Niagara Falls and use cheap hydroelectric equipment. Andrew Mellon funded the move, and in return, the Mellon family owns 20% of the company in the next century. The plant of Niagara Falls emery company opened in 1895 with a new 1000 HP furnace (746 kW). This new production capacity is supported by a huge demand for the following products and drives the production of abrasive materials for fine grinding and machining parts required by American industry.

The emery company is expanding. In 1899, Acheson opened his first international company across Niagara Falls. Canada's slogan "illegitimi is not emery" - often translated as "don't let assholes crush you down," made emery a household name during World War II. Emery is also a source of graphite lubricants. Acheson found that when "silicon carbide" (SIC) overheats to 7500 degrees Fahrenheit, silicon dioxide evaporates and leaves behind artificial graphite.

The samples collected were manufactured in the blast furnace of the mill. The smallest fragments are small iridescent crystal structures, which are then crushed to produce graded gravel. It may be rare to find an old specimen that has been allowed to completely produce some amazing crystal plates with detailed geometric patterns on the surface of the plates. These are the collector's most precious specimens. These types of specimens are most common from the 1940s to the early 1950s. Welcome to order carborundum from china abrasive manufacturer.