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Being chemically resistant to dissolution in a particular substance

Referring to ore still in the ground

A company’s first offering of shares on public mercantile exchange

Value estimates of ore made based on the inference, or assumption of the continuation of mineralization from a known region or face to another determinable point. Inferred measurements can only be upgraded to actual measurements though proper volumetric procedures

A form of the same element containing a different number of neutrons in its nucleus, giving that element characteristic properties and atomic weight

A change of state occurring at a fixed temperature

Folding sufficient to bring the limbs in parallel

Radiation that ionizes matter, rather than passing through it or reflecting from it

An exchange of ions between two electrolytes or, between an electrolytic solution and another complex, a process used in the aqueous separation of minerals

Electrically charged particles missing one or more electrons than an atom