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Mineral mining
The extraction of valuable minerals or other geological materials from the earth for economic interests.
Industry: Mining
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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.