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Gold Prospecting
Do It Yourself (DIY) Projects
Separating fine gold flakes from black sand method
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<blockquote data-quote="user 4386" data-source="post: 422805" data-attributes="member: 4386"><p>Thanks Moeee.</p><p></p><p>The only black sand that gives trouble as a rule (because not magnetic) is cassiterite - tin sand. An issue in some granite areas, like Beechworth in Victoria. Sometimes there is heavy white sand (monazite) that is difficult to separate (eg Bonang). If you have a lot, i.e. significant value (as one eductor dredger brought to me), most university metallurgy departments have more powerful electromagnetic and electrostatic separators that will work on small samples (as small as a few hundred gm total sand)</p><p>, and they are quick. Very sensitive - will even separate each mineral out (eg garnet).</p></blockquote><p></p>
[QUOTE="user 4386, post: 422805, member: 4386"] Thanks Moeee. The only black sand that gives trouble as a rule (because not magnetic) is cassiterite - tin sand. An issue in some granite areas, like Beechworth in Victoria. Sometimes there is heavy white sand (monazite) that is difficult to separate (eg Bonang). If you have a lot, i.e. significant value (as one eductor dredger brought to me), most university metallurgy departments have more powerful electromagnetic and electrostatic separators that will work on small samples (as small as a few hundred gm total sand) , and they are quick. Very sensitive - will even separate each mineral out (eg garnet). [/QUOTE]
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Gold Prospecting
Do It Yourself (DIY) Projects
Separating fine gold flakes from black sand method
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