Lead And Zinc in the United States; Comprising An Economic History of the Mining And Smelting of the Metals And the Conditions Which Have Affected the Development of the Industries
Lead And Zinc in the United States; Comprising An Economic History of the Mining And Smelting of the Metals And the Conditions Which Have Affected the Development of the Industries
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Nason, in a paper in Trans. Am. Inst. Min. Eng., February, 1894, which goes extensively into the geology of the deposit, considers that the ore-body is equivalent to a prism 3500 ft. long, 800 ft. wide, and 25 ft. thick.
The zinc ore of New Jersey is essentially a mixture of zinkite, willem- ite, and franklinite, forming a rock-like mass in appearance not unlike a granite, in which the franklinite represents the quartz, the willemite the feldspar, and the zinkite the mica. The analogy would be ...more exact if the ore were compared to a garnetiferous syenite, in which the greenish orthoclase might stand for the willemite, black hornblende for the franklinite, and the red garnet for the zinkite, but neither any granite nor the imaginary syenite would have the distinctly crystalline appear- ance and brilliancy of the New Jersey zinc ore. Besides the franklinite, willemite, and calcite there are small quantities of zinkite, tephroite, garnet, and occasionally other minerals. The average tenor of zinc in the deposit at Mine Hill is 21%.
What to read after Lead And Zinc in the United States; Comprising An Economic History of the Mining And Smelting of the Metals And the Conditions Which Have Affected the Development of the Industries?
You can find similar books in the "Read Also" column, or choose other free books by Walter Renton Ingalls to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Nason, in a paper in Trans. Am. Inst. Min. Eng., February, 1894, which goes extensively into the geology of the deposit, considers that the ore-body is equivalent to a prism 3500 ft. long, 800 ft. wide, and 25 ft. thick.
The zinc ore of New Jersey is essentially a mixture of zinkite, willem- ite, and franklinite, forming a rock-like mass in appearance not unlike a granite, in which the franklinite represents the quartz, the willemite the feldspar, and the zinkite the mica. The analogy would be ...more exact if the ore were compared to a garnetiferous syenite, in which the greenish orthoclase might stand for the willemite, black hornblende for the franklinite, and the red garnet for the zinkite, but neither any granite nor the imaginary syenite would have the distinctly crystalline appear- ance and brilliancy of the New Jersey zinc ore. Besides the franklinite, willemite, and calcite there are small quantities of zinkite, tephroite, garnet, and occasionally other minerals. The average tenor of zinc in the deposit at Mine Hill is 21%.
What to read after Lead And Zinc in the United States; Comprising An Economic History of the Mining And Smelting of the Metals And the Conditions Which Have Affected the Development of the Industries?
You can find similar books in the "Read Also" column, or choose other free books by Walter Renton Ingalls to read onlineMoreLess
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