WSilver mining is the resource extraction of silver by mining.
WAmmonium thiosulfate (ammonium thiosulphate in British English) is an inorganic compound with the formula (NH4)2S2O3. It is white crystalline solid with ammonia odor, readily soluble in water, slightly soluble in acetone and insoluble in ethanol and diethyl ether.
WJames Campbell Besley also known as "Handsome Jim" Besley, "Captain James Campbell Besley", "Captain Jim", "Captain Besley", "Colonel Besley" was an Australian explorer, amateur anthropologist, film producer, mine owner, polo player, rancher and entrepreneur who traveled the world.
WBetween 1830 and 1850 Chilean silver mining grew at an unprecedented pace which transformed mining into one of the country's principal sources of wealth. The rush caused rapid demographic, infrastructural, and economic expansion in the semi-arid Norte Chico mountains where the silver deposits lay. A number of Chileans made large fortunes in the rush and made investments in other areas of the economy of Chile. By the 1850s the rush was in decline and lucrative silver mining definitely ended in the 1870s. At the same time mining activity in Chile reoriented to saltpetre operations.
WJuan Godoy was a Chilean prospector and woodcutter who in 1832 discovered an outcrop (reventón) of silver 50 km south of Copiapó in Chañarcillo. This event sparkled the Chilean silver rush. He successfully claimed the discovered outcrop in his name and the name of José Godoy and Manuel Gallo. The finding attracted thousands of people to the place and generated significant wealth.
WElgin Bryce Holt was an American geologist, mine owner and engineer, amateur scientist, anthropologist and entrepreneur who reorganized and managed the Cerro de Plata Mining Company in Magdalena, Sonora, Mexico.
WMother lode is a principal vein or zone of gold or silver ore. The term is also used colloquially to refer to the real or imaginary origin of something valuable or in great abundance.
WThe patio process is a process for extracting silver from ore. The process was invented by Bartolomé de Medina in Pachuca, Mexico, in 1554. The patio process was the first process to use mercury amalgamation to recover silver from ore. It replaced smelting as the primary method of extracting silver from ore at Spanish colonies in the Americas. Other amalgamation processes were later developed, importantly the pan amalgamation process, and its variant, the Washoe process. The silver separation process generally differed from gold parting and gold extraction, although amalgamation with mercury is also sometimes used to extract gold.