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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. AGI
- A fault across a coal seam or orebody. AGI
- A banded ferruginous rock; specif. jaspilite. AGI
- A vein or dike crossing a lode.
- Any band of hard rock crossing a lode. Arkell
- A unit of pressure equal to 1,000,000 dyn/cm2 , 1,000 mb (100 kPa), or 29.53 in (750 mm) of mercury. Hunt
- A bank of sand, gravel, or other matter, esp. at the mouth of a river or harbor, often obstructing navigation. Webster 2nd
- 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. Hunt
- A drilling or tamping rod. Fay
- A strap or beam used to support the roof between two props or other supports. Mason
- 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. Long
- 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. ASM, 1
Source: Dictionary of Mining, Mineral, and Related Terms