CHROMIUM.
This is not a very important metal, perhaps, but some of its compounds are used as pigments (chrome yellow). It is found combined with several other substances, such as iron. This combination, known as chrome iron ore, is found at Milford Sound," on the West Coast of Otago. In the borax : bead chromium ores give an emerald green in both flames. When iron is present, as in chrome iron, the bead has a reddish tinge when hot, but it becomes green on cooling. In my next article I shall give a table for the " Systematic testing with the Blowpipe " and directions for using it.
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Bibliographic details
Otago Witness, Issue 1813, 20 August 1886, Page 36
Word Count
105CHROMIUM. Otago Witness, Issue 1813, 20 August 1886, Page 36
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