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K

Kaolin       Also known as china clay, kaolin is a white alumina-silicate clay used in porcelain, paper, plastics, rubber, paints and many other products.

Keeve       A large vat

Keewatin       A series of rocks consisting mostly of lavas, but including some sediments; the oldest recognized Precambrian rock unit

Kerf       The undercut of a coal face.

Kettle bottom       A smooth, rounded piece of rock, cylindrical in shape, which may drop out of the roof of a mine without warning. The origin of this feature is thought to be the remains of the stump of a tree that has been replaced by sediments so that the original form has been rather well preserved.

Kimberlite       A variety of peridotite; the most common host rock of diamonds.

Knob       An isolated, projecting hill or butte.

Koepe Hoist       A hoisting system in which the winding drum is replaced by large wheels or sheaves over which passes an endless rope More Information: www.mininglife.com/miner/materialshandling/hoisting.htm