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A new edition of the clearest, most authoritative guide to rocks and minerals. 600 incredible photos, precise annotations and detailed descriptions - from the distinguishing features ...
Fantastic goldfields map created exclusively for the prospector. Well researched from historical records and extensive field expeditions this map includes alluvial workings, reef lines & ...
acteristics of earth's treasured jewels and metals. It includes over 400 examples from across the globe, with a detailed introduction on identifying and classifying ...
