One more thing...befor anyone jumps me...and brings up liquor containing gold flakes:
GOLD” wines containing 24-karat gold flakes.
Oh…
It is believed that the gold flakes in liquor are meant to cut one’s throat in very tiny areas so that the alcohol may enter the bloodstream quicker for a faster effect.
See attachment from "The Young Man's Book of Amusement." This wonderful book was published in 1854 and within its 384 pages are Gems of Victorian Science. It`s unpromising, mildly suggestive title belies a veritable cornucopia of experiments. LINK:
http://www.lateralscience.co.uk/ymboa/ymboa.htmlA vast selection of interesting (& some highly ill-advised) experiments & pastimes from the 19th Century are presented within chapters on - magnetism, chemistry, optics, electricity, galvanism, pneumatics, hydrostatics & hydraulics, acoustics, magic-lantern, cards, magic figures, misc. experiments & fire-works.
Regarding attached picture: nitro-muriate of gold is the solution of gold in aqua-regia (3:1 HCl + HNO3)