File:ZIMAPAN, Image from page 306 of "Mining and Scientific Press" (1907).png

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ZIMAPAN,_Image_from_page_306_of_"Mining_and_Scientific_Press"_(1907).png (702 × 470 pixels, file size: 806 KB, MIME type: image/png)

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English: Identifier: miningscientific123sanfuoft

Title: Mining and Scientific Press Year: 1907 (1900s) Authors: Subjects: Publisher: San Francisco

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Text Appearing Before Image: is used in making cheap domestic tableware,teapots, and spoons. Antimony alloys find minor utiliza-tion in battery plates, toys, cable coverings, and siphontops Small quantities of antimony enter into certainbrasses and aluminum alloys. Lead-antimony alloy, orhard lead. :s used in making acid-resisting valves. Whiteantimony oxide, mainly the tetraoxide (Sb,OJ, is usedfor making opaque white enamel and other sanitary ware.In this use antimony oxides compete with tin oxide.Antimony oxide, mainly trioxide, is used as a coloringagent in the manufacture of glass, as it is more readilyfusible than tetraoxide and does not impart opacity to the glass. Antimonv oxides are also used as naint pig-ments. The red sulphides of antimony are used in vul-canizing and coloring vr<\ rubber and also as paint pig-ments. The natural antimony trisulphide. stibnite,enters into the composition of safety matches or of thecompound which is put on the match box. _• ml 27, 1921 MINING AND SCIENTIFIC PRESS 293

Text Appearing After Image: I 111. PLAZA AND CATIIKlK VI, OK ZIMAPAN Mining Districts Near Zimapan, Hidalgo, Mexico By Robert B. Brinsmade Zimapan is a city of about 5000 people; it is situatedin a small valley 6000 ft. above sea-level, and is entirelysurrounded by ranges of the eastern Sierra Madre. Itspopulation depends mainly for support on the miningand reduction of ores of lead, copper, and silver, as theavailable water only suffices for the irrigation of a fewhundred acres, and the rainfall is too scanty for anynatural agriculture beyond such desert products as themaguey, the tuna cactus, and the goat. The Zimapanmining district really includes, geologically, all thecamps in Hidalgo along a lime-porphyry contact ex-tending from Actopan (Fig. 1) on the south in a north-west direction, through Cardonal, Pechuga, Bonanza.Monte, Baleoncs, Ortiga, and Las Canas to the llocte-zuma river, the eastern boundary of Queretaro. Thenearest railway point is Ixmiquilpan, 30 miles to thesouth, over a poor cart-road—the

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Source Image from page 306 of "Mining and Scientific Press" (1907)
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