A N T I M O N Y : ITS HISTORY, CHEMISTRY, MINERALOGY ...
A N T I M O N Y : ITS HISTORY, CHEMISTRY, MINERALOGY ...
A N T I M O N Y : ITS HISTORY, CHEMISTRY, MINERALOGY ...
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CHAPTER TIT.<br />
THE <strong>MINERALOGY</strong> OF ANTIMONY.<br />
Native Antimony.<br />
Composition.—Sb.<br />
Properties.—JUiombohcdral. Usually massive, with a very dis<br />
lamellar structure ; sometimes granular. Colour and streak tin-whito.<br />
Brittle. H. = 3-3-5. G. - 6-6-6-75.<br />
Occurrence.—Antimony has been found native in ferruginous min<br />
water (Will), in coal, and in the sands of rivers (Campbell). The<br />
impurities found associated with it arc generally silver, iron, and<br />
arsenic. It occurs in veins of silver and other ores in Dauphiny,<br />
Bohemia, Sweden, tho Harz, Mexico, and Now Brunswick.<br />
Allemontite.<br />
Composition.—SbAs3.<br />
Properties.—Rhomb'ohedral, Roniform masses and amorph<br />
structure curved lamellar, sometimes granular. II. = #*5. G. » 6'!^-<br />
6'203. Lustre metallic, sometimes dull. Colour tin-whito or reddish<br />
gray, sometimes tarnished to brownish black. It omits fumes of As<br />
and Sb "before tho blowpipe.<br />
Occurrence.—It occurs at Allomont, Pifibram in Bohemia, Schlad<br />
ming in Styria, and Androasborg iu tho liarz.<br />
Ammiolite.<br />
Composititm.—Uivot's analysis of similar mineral from (.Jhili gave :<br />
Antimony. . . . . . SG'ft pur couU<br />
Mommy 22 '2 ,,<br />
Tollurido W8 „<br />
(3op]wr 12*2 M<br />
Quartz . . . . 2*5 ,,<br />
Properties.—Earthy powdor. Colour deep rod.<br />
Occurrence..— -Filling cavities in tho quartzose or argilloiorrugiu<br />
gangue of mercurial totrahedrite,<br />
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