- Industry: Mining
- Number of terms: 33118
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The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
Crude iron ore containing readily liberated particles of pure iron ore, loosely agglomerated with sands from which they can be separated by scrubbing treatment.
Industry:Mining
Comprises the two nickel oxides, nickelous oxide (NiO) and nickelic oxide (Ni<sub>2</sub>O<sub>3</sub>) , which are used extensively as colorants in glasses, glazes, and enamels. The use of nickel oxide in enamels is generally in the ground coat, in which it is used with cobalt and manganese. It is also used in cover coat enamels to give what is known as a daylight shade for reflector units. Nickelic oxide imparts a color to glass which is dependent upon the character of the alkali present. Nickelous oxide is used in glazes to produce blues, greens, browns, and yellows. Nickel oxide is also one of the principal components of certain type of ferrites, e.g, the nickel-zinc ferrite.
Industry:Mining
In a polarized-light microscope, the polarizing filter or Nicol prism (polar) located below the sample stage.
Industry:Mining
In a rock-crushing machine, the maximum angle subtended by its approaching jaws or roll surfaces at which a piece of ore of specified size can be gripped.
Industry:Mining
Minerals with a high specific gravity and metallic luster, such as titanium, rutile, tungsten, uranium, tin, lead, iron, etc. In general, the metallic minerals are good conductors of heat and electricity.
Industry:Mining
In technical drawing, a three-dimensional view of an object can be drawn to scale with three perpendicular edges at 120 degrees to each other, and with the vertical edges vertical.
Industry:Mining
In a fault, the horizontal component of the shift, measured perpendicular to the strike of the fault.
Industry:Mining
In coal beneficiation, the separation of coal from associated impurities, usually aided by additions of oily reagents that selectively attach to the coal surfaces. Generally restricted to material of 500 mu m top size.
Industry:Mining
