Introduction of malachite
Malachite is an ancient jade. Malachite's English name is Malachite, which is derived from the Greek Mallache, meaning "green." In ancient China, malachite was called “green greenâ€, “stone green†or “greenâ€. Malachite has such a beautiful name because its color resembles the spotted green color of peacock feathers. The oxidized zone of sulphide deposits produced by malachite in copper is often symbiotic with other copper-bearing minerals (blue copper, chalcopyrite, cuprite, natural copper, etc.). World famous places of origin include Zambia, Australia, Namibia, Russia, Zaire, and the United States. China is mainly produced in Yangchun, Guangdong, Huangshi, Hubei and Northwest Yunnan. Malachite is a copper-containing carbonate mineral with a chemical composition of Cu2(OH)2CO3, CuO71.9%, CO219.9%, and H2O8.15%. Is a monoclinic system. The crystal form is often columnar or acicular, very rare, usually in the form of crypto-crystal milk, block, husk, tuberculosis and fibrous aggregates. Concentric layered, fiber radial structure. There are green, malachite green, dark green and so on. Often with a strip, silky luster or glass luster, it seems transparent to opaque. The refractive index is 1.66-1.91, the birefringence is 0.25, and the pleochroism is colorless-yellow-green-dark green. The hardness is 3.5-4.5 and the density is 3.54-4.1 g/cm3. Sexually brittle, shell-like to jagged fracture. It reacts with hydrochloric acid and dissolves easily. [1] Encrypted Oxford Cloth Backpack,Hand Withdraw Backpack,Multi-Color Backpack,Fashion Laptop Backpack SUZHOU INNEST IMP.&EXP.TRADING CO.,LTD , https://www.suzhouinnest.com