Prospecting for Minerals a Practical Handbook for Prospectors Explorers Sett
Prospecting for Minerals a Practical Handbook for Prospectors Explorers Sett
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In our eReader you can find the full English version of the book. Read Prospecting for Minerals a Practical Handbook for Prospectors Explorers Sett 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 Prospecting for Minerals a Practical Handbook for Prospectors Explorers Sett
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To quickly assess the difficulty of the text, read a short excerpt:
They are each, how- ever, liable to be confounded with other ores.
162 PROSPECTING FOR MINERALS.
When crystallised they resemble specular iron or haematite, but may be easily distinguished ; for iron ores will not melt before the blowpipe alone, while the silver ores will, and at the same time emit the characteristic fume. Another ready test will be that of hardness, specular iron being scratched with difficulty by a knife, while the silver ores yield easily to it. Specular iron also becomes ma...gnetic on charcoal before the blowpipe. From copper glance they will be distinguished by the colour of the streak, as also from polybasite.
When compact the ruby-silver ores sometimes resemble realgar, cinnabar, and red oxide of copper in appearance, but will be distinguished by the colour of the streak, which is cochineal-red for ruby silver, orange for realgar, scarlet-red for cinnabar, and brown-red for oxide of copper ; the distinction from cinnabar, however, will be doubtful.
Before the blowpipe cinnabar entirely disappears, as it is composed of sulphur and mercury, both of which are volatile.
What to read after Prospecting for Minerals a Practical Handbook for Prospectors Explorers Sett?
You can find similar books in the "Read Also" column, or choose other free books by S Herbert Samuel Herbert Cox to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
They are each, how- ever, liable to be confounded with other ores.
162 PROSPECTING FOR MINERALS.
When crystallised they resemble specular iron or haematite, but may be easily distinguished ; for iron ores will not melt before the blowpipe alone, while the silver ores will, and at the same time emit the characteristic fume. Another ready test will be that of hardness, specular iron being scratched with difficulty by a knife, while the silver ores yield easily to it. Specular iron also becomes ma...gnetic on charcoal before the blowpipe. From copper glance they will be distinguished by the colour of the streak, as also from polybasite.
When compact the ruby-silver ores sometimes resemble realgar, cinnabar, and red oxide of copper in appearance, but will be distinguished by the colour of the streak, which is cochineal-red for ruby silver, orange for realgar, scarlet-red for cinnabar, and brown-red for oxide of copper ; the distinction from cinnabar, however, will be doubtful.
Before the blowpipe cinnabar entirely disappears, as it is composed of sulphur and mercury, both of which are volatile.
What to read after Prospecting for Minerals a Practical Handbook for Prospectors Explorers Sett?
You can find similar books in the "Read Also" column, or choose other free books by S Herbert Samuel Herbert Cox to read onlineMoreLess
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