7B       Glossary

 

ADIT

 

A horizontal passage into a mine, usually made in the side of a hill. The ADIT is particularly valuable for extracting ore and waste rock, as it can hold truck and railway lines. An ADIT emerging at the bottom of a valley will be useful in draining a mine.

BARYTES

(pronounced Bar – eye – teas) The mineral Barium Sulphate, also known as BARYTE (pronounced Bar-ite). It is much denser than other light coloured minerals. Barium Sulphate is used in making paint and paper, and the Barium meals given before X rays in hospital.

BUDDLE

Device used to separate lead ore from waste by using a flow of water.

COUNTRY ROCK

The rock surrounding a mineral vein. At Snailbeach the COUNTRY ROCK is the Mytton Flags, Stiperstones Quartzite etc.

DEADS

Waste rock, often stacked underground in worked out areas.

DRESSING

Sorting the useful ore from other minerals. It may be done by hand and eye, or by machine, such as the BUDDLE

FLAT RODS

Horizontal beams for transmitting the motion from a steam engine or water wheel to a shaft, as used in Wagbeach Level

FOOT WALL

Where a mineral vein dips steeply, the FOOT WALL of a STOPE marks the lower side of the vein.

GALENA

Lead Ore, Lead Sulphide

GIN

Mechanical device, an engine.

HALVANS

Ore bearing rock mixed with waste rock. The Halvans Company reworked the old tips to obtain discarded useful lead ore and Barytes.

HANGING WALL

Where a mineral vein dips steeply, the HANGING WALL of a STOPE marks the upper side of the vein.

JIGGER

Or JIG, a mechanical device for separating ore.

KIBBLE

Barrel shaped iron bucket used to haul lead ore out of a mine.

LEVEL

Horizontal underground passage in a mine, usually with rail tracks for carrying ore and waste rock out of the mine

LODE

Ore bearing rock

MYTTON FLAGS

Thinly bedded sandstones and shales in which mineral veins are found. They can easily be split along bedding planes to make flagstones.

OUTCROP

The place where a particular rock or mineral is found at the surface

SHAFT

Vertical entrance to a mine

STOPE

Worked out ore bearing vein, left as an underground cavity. An OPEN STOPE is one which reaches the surface. STOPING is removing the wanted ore from a vein.

SUMP

The lowest part of a mine, where water usually collects and which needs to be drained.

VEIN

Sheet like mineral formation within rock.

WINZE

Underground shaft driven downwards