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extraction of gold or minerals from rocks

  • List Minerals Associated with Gold - 911 Metallurgist

    Aug 31, 2017 ... To know what type of rock is gold associated with you must see that the ... the pyrites, whence but little . can in general be extracted by mercury.

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  • Rough Science . New Zealand . Treasure Hunt . Extracting Gold ...

    We used mercury to actually extract the gold from the powdered rock. Gold, like most minerals, can be 'dissolved' in mercury to create what's called an amalgam.

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  • Rock Crushing For Gold - Back Yard Prospecting

    Nov 12, 2012 ... High Plains Prospectors- Metal Detector&Gold Prospecting Supply ... In this video we are crushing some rocks we have collected from various prospecting trips and even a couple ... 911 Mining&Prospecting 414,585 views.

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  • How to extract gold from Rock - Quora

    Get a larger hammer or mortar and pestle; Get the gold pan. With the hammer, crush the rock down to the powder. Separate the gold from other minerals by...

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  • Gold: The mineral native Gold information and pictures - Minerals.net

    The ore is often brown, iron-stained rock or massive white Quartz, and usually contains only minute traces of gold. To extract the gold, the ore is crushed, then...

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  • Gold extraction

    Gold extraction refers to the processes required to extract gold from its ores. This may require a combination of comminution, mineral processing, hydrometallurgical, and pyrometallurgical processes to be performed on the ore. Gold mining from alluvium ores was once achieved by techniques ... Hard rock ores have formed the basis of the majority of commercial gold...

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  • Extracting gold from rock - OpenLearn - Open University

    Feb 27, 2007 ... Information on how to extract gold from rock, one of the scientists' ... Gold, like most minerals, can be 'dissolved' in mercury to form what's called...

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  • Mining, Extraction and Refining of Gold

    palaeoplacer ores gold is concentrated in thin reefs of large area in hard rock formations. Their pursuit has resulted in the evolution of reef mining at depth.

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  • How to Melt Gold Out of Rocks | Sciencing

    Mar 13, 2018 ... The process of extracting gold from ore is a multistep one, and historically ... all the gold, the metal is still mixed with a variety of other minerals.

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  • Identifying Rocks : Identifying Gold Rocks

    Jun 8, 2009 ... Gold is a very rare and precious metal that is soft, malleable and heavy, and it is often found with other minerals, such as quartz. Learn about...

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