The density of the magnetite 4.9-5.2 g / cm3, gold, 15-19 g / cm3. Fractionation of heavy liquids (bromoform 2.9 g / cm3). Мinerals with a high density sink in bromoform and lightweight float therein.
The density of the magnetite 4.9-5.2 g / cm3, gold, 15-19 g / cm3. Fractionation of heavy liquids (bromoform 2.9 g / cm3). Мinerals with a high density sink in bromoform and lightweight float therein.