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Gold Prospecting
Metal Detecting for Gold
Specific Gravity test help - Gold and quartz
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<blockquote data-quote="user 4386" data-source="post: 647394" data-attributes="member: 4386"><p>The SG method means you don't destroy the sample. Unless there are sulphides most rocks are similar SG to quartz (and you can see the rock type so get an ever better estimate). And with a "museum" type specimen there will be a significant surcharge above gold value. Gold can have as much as 50% silver but in most places it is less than 10%, and near surface almost always. Typical Victorian gold is above 94% even at depth, and we know where it is otherwise in Victoria (St Arnaud, Omeo).</p><p></p><p>Have used this to value samples for Sovereign Hill museum for purchase (eg 40 oz contained gold in fairly pure quartz)</p></blockquote><p></p>
[QUOTE="user 4386, post: 647394, member: 4386"] The SG method means you don't destroy the sample. Unless there are sulphides most rocks are similar SG to quartz (and you can see the rock type so get an ever better estimate). And with a "museum" type specimen there will be a significant surcharge above gold value. Gold can have as much as 50% silver but in most places it is less than 10%, and near surface almost always. Typical Victorian gold is above 94% even at depth, and we know where it is otherwise in Victoria (St Arnaud, Omeo). Have used this to value samples for Sovereign Hill museum for purchase (eg 40 oz contained gold in fairly pure quartz) [/QUOTE]
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Gold Prospecting
Metal Detecting for Gold
Specific Gravity test help - Gold and quartz
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