(2) in open tube. Fuses and gives off SO^{2}, which passes off up the tube, and dense white fumes of SbO^{3} and SbO^{5} which are partly deposited in the tube. (3) on charcoal. Fuses and is partly absorbed by the charcoal and partly volatilized, incrusting the charcoal with the characteristic white oxides. Colors the flame blue. (4) in forceps. -- (5) in borax. As the preceding. (6) in mic. salt. As in borax. (7) with carb. soda. Fuses and is reduced, yielding metallic antimony, which behaves as the preceding mineral upon charcoal. The alkaline mass gives the sulphur reaction. (8) Special reactions. As the preceding. * * * * * Mineral. Antimony blende Formula. [,,,Sb]^{2} + [...Sb]. Behavior (1) in glass-bulb. Fuses easily, gives off first SbO^{3} and afterwards an orange colored sublimate. Strongly heated, is decomposed and gives a black sublimate, which becomes brown on cooling. (2) in open tube. As the preceding. (3) on charcoal. As the preceding. (4) in forceps. -- (5) in borax. As native antimony. (6) in mic. salt. As in borax. (7) with carb. soda. As the preceding. (8) Special reactions. As native antimony. * * * * * Mineral. White antimony Formula. SbO^{3}. Behavior (1) in glass-bulb. Is sublimed and recondensed in the neck of the tube. (2) in open tube. As in the glass-bulb. (3) on charcoal. Fuses with the evolution of dense white fumes, which incrust the surface of the charcoal. In the reducing flame is partly reduced, yielding metallic antimony. Colors flame blue. (4) in forceps. Fuses and is volatilized, coloring the outer flame blue. (5) in borax. Gives the antimony reaction. (6) in mic. salt. As in borax. (7) with carb. soda. In the reducing flame is reduced, yielding metallic antimony. (8) Special reactions. As native antimony. * * * * * ARSENIC. * * * * * Mineral. Native arsenic Formula. As. Behavior (1) in glass-bulb. Sublimes without fusion and recondenses as a dark grey metallic sublimate, sometimes leaving a small residue.