A term used to describe the arrangement of leaves or sheets in a structure, sometimes bound on a side
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Category: <span>L</span>
Planks, rods, beams or timbers used to between steel ribbing of an underground structure to fortify support and prevent the picture or rupture of a roof and overlying rocks
A chemical agent sometimes used in the process flotation to depress iron minerals
A formation where pressurized volcanic fluid beneath the Earths surface pushes the overlying rock into a dome shaped structure
A trough usually 2 meters long, used for washing gold-bearing earth utilizing moving water and a series of riffles for trapping heavy particles. It is longer than a rocker or sluice
A rock body thick in the middle and tapered out at its ends
2,240 lbs. avoirdupois, compared to a short ton, which is 2,000 lbs.
Chemical collection of minerals dissolved from ore
The process of recording geological or geophysical data
A variety of magnetite with a high percentage of iron, Fe3O4.