Definition of pocket

i. A localized enrichment; a crevice in bedrock containing gold; a rich patch of gold in a reef.

ii. A rich deposit of mineral, but not a vein.

iii. A bin, of a capacity equal to the skip, used at the shaft bottom of an underground mine for quick and accurate skip loading.

See Also: shaft pocket, measuring chute

Ref: Nelson

iv. A receptacle, from which coal, ore, or waste is loaded into wagons or cars.

Ref: Fay

v. A ganister quarryman's local term for masses of rock, 30 to 50 ft (9.1 to 15.2 m) in width, that are worked out and loaded, leaving buttresses of untouched rock between them to support the upper masses.

Ref: Fay

vi. A hole or depression in the wearing course of a roadway.

Ref: Fay

vii. A local accumulation of gas.

Ref: Hudson

viii. A bulge, sop, or belly in a lode or bed.

See Also: belly

Ref: Arkell

ix. A cavity, whether filled with air, water, mineral, or gravel.

Ref: Arkell

x. In pegmatites, the central openings lined with crystals, including those of gem species.

Ref: Sinkankas