iron tungsten tin alluvial g

  • Sedimentary Materials

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    Ores Principally we discuss ores as sources of metals However, there are many other resources bound in minerals which we find useful How many can we think of?

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  • Mining in Cornwall and Devon Wikipedia

    Originally tin was found as alluvial deposits of ... There are few remains of prehistoric tin mining in Cornwall or ... The Hemerdon tungsten and tin mine in south ...