(4) in forceps. --

(5) in borax. The infusible residue obtained upon charcoal
gives an iron and sometimes copper and cobalt
reaction.

(6) in mic. salt. As in borax.

(7) with carb. soda. With carbonate of soda, oxalate of potash yields
a metallic bead, the fused alkali laid upon
silver and moistened produces a stain similar to
that produced by sulfur.

(8) Special reactions. --

* * * * *

Mineral. Jamesonite

Formula. [,Pb]^{3}[,,,Sb]^{2}.

Behavior

(1) in glass-bulb. Fuses and gives off some sulphur, sulphide of
antimony and antimony which condense in the neck
of the bulb.

(2) in open tube. Fuses and emits dense white fumes of SbO^{3},
which pass off and redden blue litmus paper.