Topic summary
Aurotype
Extracted from the Wikipedia article Chrysotype.
Chrysotype (also known as a chripotype) is a photographic process invented by John Herschel in 1842, though it was eclipsed in popularity by Henry Fox Talbot's calotype process. Named from the Greek for "gold", χρυσός, it uses gold chloride to record images on paper. Since then, the process has been rediscovered and reinvented by other practitioners on many occasions with varying success. They include Robert Hunt's 1841 'gold process', Thomas Hennah's 1852 'gold prints', and Alfred Jarman's 1897 aurotype process.