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QUICK TEST FOR GOLD IN ETCHED ROCK
Автор: meMiner
Загружено: 2016-10-18
Просмотров: 236614
Описание:
In this video, I test visible gold contained in a rock using 14KT jeweler's acid. This stone was found in an Ontario gold mine tailings. My metal detector said there was something interesting about it, so I was dissolving the calcite to see what it contained.
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