absolutely; before anything we should know what material we are usingI reply to these posts on a regular basis because of the potential hazards which can and have caused severe injuries and even death.
Mixing any unknown ores to acids and or even roasting can release highly toxic fumes and create just as toxic wastes.
Get an assay done , a proper assay ie full elements , it’s expensive but it may well save your health and long term money.
If you mix an acid with a metal sulfide you will get H2S as a off gas. This is the famous Hydrogen Sulfide, or Sour gas of few live to tell about it fame. H2S is approx twice as deadly as Hydrogen cyanide and is incredibly fast acting. It will not forgive you of any mistake and you are good as gone if you don’t protect yourself properly while doing anything involving H2S. Please do some educational stuff before you proceed.Hello all, forgive the newbie. Anyone with experience handling aqua regia with chalcopyrite ...? I would surely use your help. Thanks
The problem with ores containing telluride and sulfide is that in certain environments, they form patches of Coloradoite, a sulfide of tellurium and mercury. Refining by smelting or chemically would require careful planning, a specially designed process, and appropriate safety equipment. Crushing, pulverizing, and panning may be a better bet, but then you need to safely recycle the mercury. Once it gets in the water table, bad things happen. EG Minimata, JApan.Here are some pics of the chalcopyrite
Beautiful samples!Here are some pics of the chalcopyrite
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