The Fabrication of Diamonds.
The origin of the diamond has puzzled the scientific world for many years, but a general agreement seems to have been reached that at least one method of their formation is known. Iron at a temperature of three thousand oentigrades saturated with carbon and cooled under high pressure yields a portion of its carbon, which crystallizes as diamonds. The • knowledge of the fact has led to experiments with hardened steel, which is made under somewhat similar conditions. The metal, was dissolved in hydro chloric acid, and the solution was treated successively with concentrated nitric aoid, and sulphate acid. From this treatment very minute crystals are obtained, which exhibit all the physical and chemical qualities of, and in fact are true diamonds.
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Manawatu Herald, 15 April 1897, Page 2
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125The Fabrication of Diamonds. Manawatu Herald, 15 April 1897, Page 2
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