Vietnam or Thailand ? Vote for the TOP Country of the Week !
Updated: May 26, 2025
Mosaic gold, or aurum mosaicum, is used for inferior articles.
It is prepared in the following manner: 1 lb. of tin is melted in a crucible, and 1/2 lb. of purified quicksilver added to it; when this mixture is cold, it is reduced to powder, and ground with 1/2 lb. of sal-ammoniac, and 7 ozs. of flower of sulphur, till the whole is thoroughly mixed; they are then calcined in a mattrass, and the sublimation of the other ingredients leaves the tin converted into the aurum mosaicum, which is found at the bottom of the glass, like a mass of bright flakey gold powder.
Word Of The Day
Others Looking