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Gold Prospecting
Metal Detecting for Gold
Black or Discoloured Nugget?
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<blockquote data-quote="user 4386" data-source="post: 537284" data-attributes="member: 4386"><p>It is very simple to determine (if you consider most of that lump to be gold). You don't have to damage it to do so - determine its specific gravity (gold is three times heavier than lead). Very simple, very rapid.</p><p></p><p>Black coated nuggets occur in a few places in Victoria, the coating usually being manganese oxide.</p><p></p><p>I'm a bit doubtful though - you say "It feels heavy for its size" - if you had said "bloody heavy" it would be more promising.</p></blockquote><p></p>
[QUOTE="user 4386, post: 537284, member: 4386"] It is very simple to determine (if you consider most of that lump to be gold). You don't have to damage it to do so - determine its specific gravity (gold is three times heavier than lead). Very simple, very rapid. Black coated nuggets occur in a few places in Victoria, the coating usually being manganese oxide. I'm a bit doubtful though - you say "It feels heavy for its size" - if you had said "bloody heavy" it would be more promising. [/QUOTE]
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Gold Prospecting
Metal Detecting for Gold
Black or Discoloured Nugget?
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