Aluminium gold—this alloy, which is now so extensively employed in the manufacture of watches and jewellery, is composed of ten parts aluminium and ninety parts of copper in each hundred. It is the color of gold, lakes a high polish, and is very malleable. This alloy is also extremely hard, and possesses a tenacity equal to that of the best stcol. The metal aluminium is the chief consistent in alum and in common clay. This metal is not much more than two and a half times as heavy as water, and is about four times lighter than silver, which it greatly resembles in colour and lustre. When silver is alloyed with a small preparation of this metal it obtains the property of not being tarnished on exposure to the atmosphere.
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Dunstan Times, Issue 508, 12 January 1872, Page 1 (Supplement)
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130Untitled Dunstan Times, Issue 508, 12 January 1872, Page 1 (Supplement)
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