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Substances used to neutralize acid from materials for storage, disposal, handling etc. Typically these include calcium or magnesium carbonate, CaCO3 and MgCO3, respectively

A controlled disturbance of a mixture or solution, largely achieved by mechanical means including vibration

A metallurgical process utilizing acid solution to dissolve metals such as gold, uranium, copper

Machine using air flow to induce separation of aerophilic and hydrophilic particles Air bubbles of a lower pressure lift aerophilic particles to an overflow thereby separating hydrophilic particles

Rock or various type and grade, including sand, used in many cases as fill

A pyroclastic deposit characterized by vitric binding or sintering of its minerals

A breccia composed of volcanic rock fragments

Materials sliding inwards or moving concavely inside of a break

A light, silvery-white, ductile metal with high electrical conductivity and high resistance to oxidation. Symbol, Al

Physical and chemical changes in a rocks or mineral subsequent to initial formation, and to a lesser degree than metamorphosis