metallic bead and
incrusting the charcoal with PbO.

(8) Special reactions. Gives the chlorine reaction with microcosmic
salt and CuO. Also the phosphoric acid
reactions.

* * * * *

Mineral. Mimetene

Formula. PbCl+ 3[.Pb]^{3}[.....As]

Behavior

(1) in glass-bulb. As the preceding.

(2) in open tube. --

(3) on charcoal. Fuses, but less easily than the preceding, gives
off AsO^{3} and incrusts the charcoal with
PbCl. Finally is reduced to a metallic bead and
forms an incrustation of PbO.

(4) in forceps. As the preceding.

(5) in borax. The oxide formed on charcoal gives the lead
reactions.

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

(7) with carb. soda. As the preceding.

(8) Special reactions. Gives the chlorine reaction.

* * * * *

Mineral. Vanadinite

Formula. PbCl + 3[.Pb]^{3}[...V]?

Behavior

(1) in glass-bulb. As pyromorphite.

(2) in open tube. --

(3) on charcoal. The powdered mineral fuses fuses to a black
shining mass, which in the reducing flame
affords a metallic bead. Incrusts the charcoal
first with a white film of PbCl and afterwards
with PbO.

(4) in forceps. As pyromorphite.

(5) in borax. Dissolves readily to a clear glass, which, in
the oxidizing flame, is yellow, while hot, and
colorless when cold. In reducing flame becomes
opaque, and on cooling green.

(6) in mic. salt. In oxidizing flame is yellow while hot, becoming
paler on cooling. In reducing flame brown while
warm, and emerald green when cold.

(7) with carb. soda. On platinum wire fuses to a yellow bead, which
is crystalline on cooling. On charcoal yields a
button of metallic lead.

(8) Special reactions. With microcosmic salt and CuO, gives the chlorine
reaction. If fused in a platinum spoon with from