EXPERIMENT I. A notable Comminution of Gold into Powder, that will sink in Water.
* 1.1WE dissolved a grain of refined Gold in Aqua Regia, adding about two spoon∣fuls of Water to the Solution, in which Mixture a small piece of Metal being suspended, it in a few days afforded a deep coloured Precipi∣tate, which was so light that it was a conside∣rable time in subsiding, and as easily raised in the form of Mud upon an Agitation of the Vessel; where it was to be noted, that tho' upon an Agitation the Liquor at the first seemed Opa∣cous, yet in a little time it appeared to be of a fine Purple colour, so that the Particles of Gold were so far divided, as by being scatte∣red through two ounces of Water to give a Tincture to it.