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Gold Prospecting
Alluvial Gold Prospecting
sodium metaborate instead of borax
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<blockquote data-quote="jon_m" data-source="post: 521959" data-attributes="member: 2232"><p>The Aldi mapp gas ingredients are;</p><p>1-propene: 36-44 %</p><p>Dimethyl ether: 36 - 44 %</p><p>Propane: 18 - 22 %</p><p></p><p>Sounds like it will melt, but if not a new Bunnings cartridge should not be an issue.</p><p></p><p>What could help is a mini furnace/surround to have the crucible in & keep heat in. Would Hebel block suffice or is it likely to explode or crack up?</p><p></p><p>7.62 Thanks I have plenty of sodium carbonate, and should pickup some borax from the supermarket. But thanks and I do wonder if the supermarket borax will have any 'negative affect' ingredients added in?</p><p></p><p>Not having panned before, it seems that getting all or almost all the other minerals out of the specimens is the difficult thing to begin with. Quartz and light stuff comes out ok But gold flecked through ironstone doesn't seem to pan well, even before or after HCL its tedious. </p><p></p><p>So it'd be interesting to know how much of 'other minerals' to expect that the borax/flux can remove? And to this end, do I have it correct that re-melting with extra doses of borax will continue to purify the gold?</p></blockquote><p></p>
[QUOTE="jon_m, post: 521959, member: 2232"] The Aldi mapp gas ingredients are; 1-propene: 36-44 % Dimethyl ether: 36 - 44 % Propane: 18 - 22 % Sounds like it will melt, but if not a new Bunnings cartridge should not be an issue. What could help is a mini furnace/surround to have the crucible in & keep heat in. Would Hebel block suffice or is it likely to explode or crack up? 7.62 Thanks I have plenty of sodium carbonate, and should pickup some borax from the supermarket. But thanks and I do wonder if the supermarket borax will have any 'negative affect' ingredients added in? Not having panned before, it seems that getting all or almost all the other minerals out of the specimens is the difficult thing to begin with. Quartz and light stuff comes out ok But gold flecked through ironstone doesn't seem to pan well, even before or after HCL its tedious. So it'd be interesting to know how much of 'other minerals' to expect that the borax/flux can remove? And to this end, do I have it correct that re-melting with extra doses of borax will continue to purify the gold? [/QUOTE]
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Gold Prospecting
Alluvial Gold Prospecting
sodium metaborate instead of borax
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