Coloured Gemstones – Historic emerald mine returns to life.

  The Gravelotte emerald mine, which was in operation from 1929 to 2002 and was reportedly the world’s biggest emerald mine in its heyday, is once again in production, albeit initially on a very small scale. The company behind the revival of the mine is LSE-listed junior GEM Resources (previously URA Holdings), Arthur Tassel recently…

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