It frequently contains a small quantity of Mn2O3, which may be detected in the borax bead.
In borax bead it slowly dissolves to a clear transparent glass, which is a beautiful green when cool.
When heated on the borax bead it gives an equally beautiful green, which is, however, rather more inclined to chrome than emerald.
This globule may be examined for iron, cobalt, and nickel with the borax bead.
With borax bead it reacts for iron and sometimes for manganese.
Microcosmic Salt dissolves oxide of copper in the flame of oxidation to a green bead, not so intensely colored as the borax bead.
This powder should then be fused in the oxidation flame until it mixes with, and is thoroughly dissolved by the borax bead.
Didymium salts have a rose or violet colour, and impart (when in sufficient quantity) the same colour to the borax bead.
Substances containing chromium impart a green colour to the borax bead in both flames.