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#A placer deposit, generally submerged, in the slack portion of a stream. Also, an accumulation of gravel along the banks of a stream; bar diggings.
#A mass of inferior rock in a workable deposit of granite.  <i>AGI </i>
#A fault across a coal seam or orebody.  <i>AGI </i>
#A banded ferruginous rock; specif. jaspilite.  <i>AGI </i>
#A vein or dike crossing a lode.
#Any band of hard rock crossing a lode.  <i>Arkell </i>
#A unit of pressure equal to 1,000,000 dyn/cm<sup>2</sup> , 1,000 mb (100 kPa), or 29.53 in (750 mm) of mercury.  <i>Hunt </i>
#A bank of sand, gravel, or other matter, esp. at the mouth of a river or harbor, often obstructing navigation.  <i>Webster 2nd </i>
#An offshore ridge or mound of sand, gravel, or other unconsolidated material submerged at least at high tide, esp. at the mouth of a river or estuary, or lying a short distance from, and usually parallel to, the beach.  <i>Hunt </i>
#A drilling or tamping rod.  <i>Fay </i>
#A strap or beam used to support the roof between two props or other supports.  <i>Mason </i>
#A length of steel pipe equipped with a flat cap at one end and a jackscrew on the opposite end by means of which the pipe may be wedged securely in a vertical or horizontal position across an underground workplace to serve as a base on which a small diamond or rock drill may be mounted. Syn: [[drifter bar]]; [[drill bar]]; [[drill column]].  <i>Long </i>
#A heavy steel rod with either pointed or flattened ends used as a pry or as a tool by miners to dislodge loose rock in roof or sidewalls of an underground workplace. Syn: [[scaling bar]]
#A piece of material thicker than sheet, long in proportion to its width or thickness, and whose width-thickness ratio is much smaller than that of sheet or plate, as low as unity for squares and rounds.  <i>ASM, 1 </i>

Source: Dictionary of Mining, Mineral, and Related Terms