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Inferred ore

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

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Industrial minerals

Minerals used in manufacturing, construction and industrial process, excluding metals, petroleum and bitumen

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Inductively coupled plasma (atomic emission) spectroscopy. (ICP-AES)

A process that analysis concentration of minerals in a substance, by sending energy through plasma, suspended in a quartz tube to produce excited atoms in the analyzed substance which reflect radiation at a wavelength associated with a particular element and its concentration. See X-ray fluorescence (XRF)

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Induced polarization

A method of geophysical surveying utilizing electrical currents and conductivity readings to outline or pinpoint areas of mineralization

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Indicator

A geological or biological feature or other mineral that suggests the presence of a specific mineral within its environment

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Index fossil

A fossil used to determine the surrounding rock based on the likely time of its origin

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Inclusion

A fragment of other rock contained or enclosed within a host rock

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Incendivity

When a substance is caused to ignite a spark or flame, through chemical or mechanical reaction