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Mineral mining

The extraction of valuable minerals or other geological materials from the earth for economic interests.

Contributors in Mineral mining

Mineral mining

Borax bead test

Mining; General mining

A chemical test to disclose the presence of certain metals in a sample. A clear glassy bead of borax fused in a wire loop will react chemically with the salts of certain metals and yield colours that ...

Nonmetal

Mining; General mining

A chemical element (as boron, carbon, phosphorus, nitrogen, oxygen, sulfur, chlorine, or argon) that is not classed as a metal because it does not exhibit most of the typical metallic properties. An ...

Substitution

Mining; General mining

A chemical defect wherein one ion replaces another in a crystal structure. Substitution may be partial; e.g., iron for zinc in sphalerite up to 30%, or complete; e.g., manganese and iron in the ...

Chromatography

Mining; General mining

A chemical process of separating closely related compounds by permitting a solution of them to philtre through an absorbent so that the different compounds become absorbed in separate coloured layers ...

Binary system

Mining; General mining

A chemical system containing two components, e.g., the MgO-SiO 2 system.

Actinide element

Mining; General mining

A chemical element with atomic number greater than 88; all are radioactive.

Actinide

Mining; General mining

A chemical element with atomic number greater than 88; all are radioactive.

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