borax. The roasted mineral affords the uranium
reaction.

(6) in mic. salt. As borax. Also a small residue of silica.

(7) with carb. soda. Infusible. Affords the characteristic Pb
incrustation, and sometimes yields minute
particles of Cu.

(8) Special reactions. --

* * * * *

Mineral. Uranium ochre

Formula.
[...U=][.H]^{2}.
Behavior

(1) in glass-bulb. Evolves water and assumes a red color.

(2) in open tube. --

(3) on charcoal. V. In reducing flame assumes a green color.

(4) in forceps. --

(5) in borax. Gives the uranium reaction.

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

(7) with carb. soda. --

(8) Special reactions. --

* * * * *

Mineral. Uranite

Formula. ([.Ca] +[...U=]^{2})[.....]P + 8[.H].

Behavior

(1) in glass-bulb. Evolves water and becomes yellow and opaque.

(2) in open tube. --

(3) on charcoal. Fuses with intumescence to a black bead having a
semi-crystalline surface.

(4) in forceps. --

(5) in borax. Gives the uranium reaction.

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

(7) with carb. soda. Forms an infusible yellow slag.

(8) Special reactions. Gives the PO^{5} reaction.

* * * * *

Mineral. Chalcolite

Formula. ([.Cu]+[...U=]^{2})[.....P] + 8[.H].

Behavior

(1) in glass-bulb. As uranite.

(2) in open tube. --

(3) on charcoal. As uranite.

(4) in forceps. As uranite.

(5) in borax. In the oxidizing flame gives a green bead, which
in the reducing flame becomes of an opaque red,
from Cu.

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

(7) with carb. soda. In reducing flame yields a metallic bead of Cu.

(8) Special reactions. As uranite.

* * * * *

IRON.

* * * * *

Mineral. Iron pyrites

Formula. FeS^{2}.

Behavior

(1) in glass-bulb. Gives a considerable yellow sublimate of
sulphur, and some