Petzite
Geology

Rare GOLD Minerals

This list of ores classified as natural and rare gold minerals are refractory to process. All these are sulphides refractory gold bearing minerals and will have a poor

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radioactive gold
Gold Extraction

Radioactive Gold & Isotopes

The only natural gold isotope is 197Au.  All others are radioactive ranging from 185Au to 203Au and are manmade. They dont make for good lasting

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FROTH CROWDING FLOTATION MACHINE AND METHOD
Flotation

Froth Crowder

The concept of froth crowders and was developed in the early 1950s.  The need for crowding froth out of a flotation cell grew along with

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