The World's Minerals

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Frederick A. Stokes Company, 1916 - Mineralogy - 327 pages
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Page 43 - Rock Salt. 7. Quartz. 3. Calcite. 8. Topaz. 4. Fluorspar. 9. Corundum. 5. Apatite. 10. Diamond.
Page 276 - As a coloring material manganese is used in calico dyeing; for coloring bricks, glass, and pottery, and in the manufacture of green and violet paints. Compounds of manganese are used in a small way for medicine, and the mineral rhodonite, a silicate of manganese, is used rarely for ornamental purposes on account of its beautiful pink color.
Page 47 - Zn 65.4 ALUMINUM Al 27 Antimony Sb 120 Arsenic As 75 Barium Ba 137.4 Bismuth Bi 208 Boron B 11 CALCIUM Ca 40 CARBON C 12 Chlorine Cl 35.5 CHROMIUM Cr 52 Cobalt Co 59 Copper Cu 63.6 Fluorine F 19 Gold Au 197 HYDROGEN H 1 Iodine I 127 IRON Fe 56 Lead Pb 207 These combining weights are used in the laboratories of chemical analysis, in calculating furnace burdens and similar work.
Page 39 - Art. 963 it was stated that the specific gravity of a body was the ratio between the weight of the body and the weight of an equal volume of water, but no methods were given for finding this ratio. Some of these methods will now be explained.
Page 290 - In the cases of the coal gas and air, enough heat is evolved on the surface of the platinum to raise it to redness. The result being due to surface action, it is manifest that an increase of the...
Page 108 - ... such as the Dead Sea and the Great Salt Lake of Utah.
Page x - Dr. Hans Lenk, professor of mineralogy and geology in the University of Erlangen.
Page 281 - Mercury is unique in that it is the only metal that is a liquid at ordinary temperatures.
Page 113 - The average grains making up a soil are about two and a half times as heavy as an equal volume of water...
Page x - SPENCER. 12s. 6d. net. With 40 coloured plates and 21 diagrams. The text of this book is in the main descriptive of the 116 species of the more common simple minerals, which are illustrated by 163 figures on the coloured plates. Descriptions of a few other important species have been added.

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