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Gold Prospecting
Hard Rock Gold Prospecting
Road works exposing Quartz
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<blockquote data-quote="jethro" data-source="post: 414189" data-attributes="member: 1297"><p>From the pics it looks very much like gold. As far as using HCL acid to determine if its pyrite goes, Iron, and for that matter Arsenopyrite dos not desolve rapidly in HCL at the concentration you can buy it as brickies acid in Bunnings. Id be dollying the samples and washing down to concentrate the mineral and then heating to a dull red heat on Charcoal with a torch. If its Pyrite it will give of sulphurous fumes and turn a rusty red. Gold will not change or oxidize under the torch. (unless you get it hot enough to melt. (white hot). If its arsenopyrite It will give off the highly poisonous arsenic fumes of arsenic trioxide. dont breath it.</p></blockquote><p></p>
[QUOTE="jethro, post: 414189, member: 1297"] From the pics it looks very much like gold. As far as using HCL acid to determine if its pyrite goes, Iron, and for that matter Arsenopyrite dos not desolve rapidly in HCL at the concentration you can buy it as brickies acid in Bunnings. Id be dollying the samples and washing down to concentrate the mineral and then heating to a dull red heat on Charcoal with a torch. If its Pyrite it will give of sulphurous fumes and turn a rusty red. Gold will not change or oxidize under the torch. (unless you get it hot enough to melt. (white hot). If its arsenopyrite It will give off the highly poisonous arsenic fumes of arsenic trioxide. dont breath it. [/QUOTE]
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Gold Prospecting
Hard Rock Gold Prospecting
Road works exposing Quartz
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