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Japan has large reserves of sulfur. In North Vietnam phosphates are obtainable
from sedimentary fields and from apatite. The Soviet Union has large deposits of
phosphates in the Mangyshlak Peninsula on the eastern shore of the Caspian ...
The kyanite deposits of Kharsawan in Singhbhum are the largest in the world.
Singhbhum is also important for manganese, chromite, apatite (rock phosphate, a
source of fertilizer), and uranium. Extensive pyrite (an iron disulfide mineral used
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review