A N T I M O N Y : ITS HISTORY, CHEMISTRY, MINERALOGY ...

CHAPTER TIT.
THE MINERALOGY OF ANTIMONY.
Native Antimony.
Composition.—Sb.
Properties.—JUiombohcdral. Usually massive, with a very dis
lamellar structure ; sometimes granular. Colour and streak tin-whito.
Brittle. H. = 3-3-5. G. - 6-6-6-75.
Occurrence.—Antimony has been found native in ferruginous min
water (Will), in coal, and in the sands of rivers (Campbell). The
impurities found associated with it arc generally silver, iron, and
arsenic. It occurs in veins of silver and other ores in Dauphiny,
Bohemia, Sweden, tho Harz, Mexico, and Now Brunswick.
Allemontite.
Composition.—SbAs3.
Properties.—Rhomb'ohedral, Roniform masses and amorph
structure curved lamellar, sometimes granular. II. = #*5. G. » 6'!^-
6'203. Lustre metallic, sometimes dull. Colour tin-whito or reddish
gray, sometimes tarnished to brownish black. It omits fumes of As
and Sb "before tho blowpipe.
Occurrence.—It occurs at Allomont, Pifibram in Bohemia, Schlad
ming in Styria, and Androasborg iu tho liarz.
Ammiolite.
Composititm.—Uivot's analysis of similar mineral from (.Jhili gave :
Antimony. . . . . . SG'ft pur couU
Mommy 22 '2 ,,
Tollurido W8 „
(3op]wr 12*2 M
Quartz . . . . 2*5 ,,
Properties.—Earthy powdor. Colour deep rod.
Occurrence..— -Filling cavities in tho quartzose or argilloiorrugiu
gangue of mercurial totrahedrite,
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