Dictionary of mining mineral and related terms pdf

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dictionary of mining mineral and related terms pdf

Appendix:Dictionary of Mining, Mineral, and Related Terms/C/5 - Wiktionary

A relatively rare crystal form of diamond having six equal-area faces at right angles to each other. A rectangular prism having squares for its ends and faces. A crystal form of six equivalent not necessarily square and mutually perpendicular faces, with indices of A hexahedron, a crystal form of the isometric system consisting of six mutually orthogonal planar faces. Conditions of growth may yield crystal faces that are not perfectly square, but are at mutual right angles. A diamond in cube form. Dice, e.
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How to find Silver Veins in Abandoned Mines

This information is taken with permission from the U.S. Bureau of Mines. Dictionary of Mining, Mineral, and Related Terms published on CD-ROM in. .

(EN) (PDF) – Dictionary of Mining, Mineral, & Related Terms | U.S. Bureau of Mines

Colloidal aluminum hydroxide occurring as one of the constituents of bauxite. Also spelled kliachite. See also: laterite; sporogelite. Syn: alumogel. Dialectal var. A term used in southern Wales for various kinds of shale, esp. Coal that has been altered by an igneous intrusion.

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Acidic precipitation - Snow and rain that have a low pH, caused by sulphur dioxide and nitric oxide gases from industrial activity released into the atmosphere. Acid mine drainage - Acidic run-off water from mine waste dumps and mill tailings ponds containing sulphide minerals. Also refers to ground water pumped to surface from mines. Adit - An opening driven horizontally into the side of a mountain or hill for providing access to a mineral deposit. Aerial magnetometer - An instrument used to measure magnetic field strength from an airplane.

Customer Service: 1. Abutment — In coal mining, 1 the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and 2 the weight of the rocks over a longwall face is transferred to the front abutment, that is, the solid coal ahead of the face and the back abutment, that is, the settled packs behind the face. Acid deposition or acid rain — Refers loosely to a mixture of wet and dry "deposition" deposited material from the atmosphere containing higher than "normal" amount of nitric and sulfuric acids. The precursors or chemical forerunners of acid rain formation result from both natural sources, such as volcanoes and decaying vegetation, and man-made sources, primarily emissions of sulfur and nitrogen oxides resulting from fossil fuel combustion. Acid mine water — Mine water that contains free sulfuric acid, mainly due to the weathering of iron pyrites. Active workings — Any place in a mine where miners are normally required to work or travel and which are ventilated and inspected regularly. Adit — A nearly horizontal passage from the surface by which a mine is entered and dewatered.

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