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Gold Prospecting
Alluvial Gold Prospecting
Can some one assay a small pyrites sample ?
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<blockquote data-quote="XLOOX" data-source="post: 668397" data-attributes="member: 16174"><p>Depends what you think is a reasonable cost - a few hundred bucks per sample ?</p><p></p><p>Doesnt sound reasonable? well if you want to do it yourself then you could grind it to powder in your dolly pot, heat it in a carbon crucible with a butane flame until all the sulfur is gone, cool, grind it again, dissolve out the iron with brick acid, filter ,dissolve out the silica with Alubrite, filter, wash with water, dry, then put back in the crucible with flux and heat to 1300C until you have a prill, which will be so small that you cant find it to weigh it and your scales wont go that low anyway.....</p><p></p><p> No way that DIY fire assay by a 1st timer who is not a analytic chemist will deliver any result worth anything so suggest that as first step you see what commercial lab prices are but the sample size you show though will be too low for most labs to take.</p><p></p><p>[URL unfurl="true"]https://www.northaustralianlaboratories.com/services[/URL]</p><p>[URL unfurl="true"]https://www.alsglobal.com/en/geochemistry[/URL]</p></blockquote><p></p>
[QUOTE="XLOOX, post: 668397, member: 16174"] Depends what you think is a reasonable cost - a few hundred bucks per sample ? Doesnt sound reasonable? well if you want to do it yourself then you could grind it to powder in your dolly pot, heat it in a carbon crucible with a butane flame until all the sulfur is gone, cool, grind it again, dissolve out the iron with brick acid, filter ,dissolve out the silica with Alubrite, filter, wash with water, dry, then put back in the crucible with flux and heat to 1300C until you have a prill, which will be so small that you cant find it to weigh it and your scales wont go that low anyway..... No way that DIY fire assay by a 1st timer who is not a analytic chemist will deliver any result worth anything so suggest that as first step you see what commercial lab prices are but the sample size you show though will be too low for most labs to take. [URL unfurl="true"]https://www.northaustralianlaboratories.com/services[/URL] [URL unfurl="true"]https://www.alsglobal.com/en/geochemistry[/URL] [/QUOTE]
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Gold Prospecting
Alluvial Gold Prospecting
Can some one assay a small pyrites sample ?
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