The Richest Section of Yale District British Columbia Nicola Similkameen An
The Richest Section of Yale District British Columbia Nicola Similkameen An
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In our eReader you can find the full English version of the book. Read The Richest Section of Yale District British Columbia Nicola Similkameen An Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Richest Section of Yale District British Columbia Nicola Similkameen An
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An assay of the sample is the only means of acquiring the slightest information as to its gold contents, as free gold is rarely visible. In many cases it is impossible to distinguish a sample which will give twenty dollars to the ton from one that will assay two dollars per ton. Again in the oxidized rock of the surface one can often wash a crushed sample in a great number of very fine colors of gold will appear in the bottom of the pan. In another sample no colors will be obtained, yet the one... will; give as good results on an assay as the other. As a rule, however, some assay values in gold will be obtained when arsenopyrite occurs in that altered sediments where they are cut by the acid variety of monzonite or its dike equivalent.
As to the original source of the arsenopyrite, one does not have to look farther than the monzonite itself. It occurs in small quantities as an acces- sory mineral in the monzonite mass, but in the dikes and sheets of andesite it is so plentiful as to appear almost as an essential constituent.
What to read after The Richest Section of Yale District British Columbia Nicola Similkameen An?
You can find similar books in the "Read Also" column, or choose other free books by Frank Bailey to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
An assay of the sample is the only means of acquiring the slightest information as to its gold contents, as free gold is rarely visible. In many cases it is impossible to distinguish a sample which will give twenty dollars to the ton from one that will assay two dollars per ton. Again in the oxidized rock of the surface one can often wash a crushed sample in a great number of very fine colors of gold will appear in the bottom of the pan. In another sample no colors will be obtained, yet the one... will; give as good results on an assay as the other. As a rule, however, some assay values in gold will be obtained when arsenopyrite occurs in that altered sediments where they are cut by the acid variety of monzonite or its dike equivalent.
As to the original source of the arsenopyrite, one does not have to look farther than the monzonite itself. It occurs in small quantities as an acces- sory mineral in the monzonite mass, but in the dikes and sheets of andesite it is so plentiful as to appear almost as an essential constituent.
What to read after The Richest Section of Yale District British Columbia Nicola Similkameen An?
You can find similar books in the "Read Also" column, or choose other free books by Frank Bailey to read onlineMoreLess
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