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  • Thumbnail for Iridium
    density of around 21.8 g/cm3 (0.79 lb/cu in) and noted the metal is nearly immalleable and very hard. The first melting in appreciable quantity was done by...
    81 KB (7,823 words) - 10:51, 3 May 2024
  • Thumbnail for Metal
    were at first called semimetals or bastard metals on account of their immalleability. All four may have been used incidentally in earlier times without recognising...
    80 KB (10,252 words) - 15:42, 3 April 2024