a. Eng. To clear away fallen stone or debris. Syn:rid
b. Northumb. Overburden. CF:ridding
c. Scot. To scour through, take down, or rip. Fay

redd bing

A pile of waste made of material brought direct from the mine, not waste
from washery. Zern

reddingite

An orthorhombic mineral, Mn₃ (PO₄ )₂ .3H₂ O ;
forms a series with phosphoferrite; pink; at Redding, CT.

reddle

Red ocher mixed with clay. Also spelled ruddle, raddle.

reddleman

A dealer in reddle or red chalk.

red dog

Material of a reddish color resulting from the combustion of coal shale
and other mine waste in dumps on the surface.

reddsman

Scot. One who works at night cleaning up and repairing roadways, etc.

red earth

The characteristic soil of most tropical regions. It is leached, red,
deep, and clayey.

red glassy copper ore

See:cuprite

red-hard

A term applied to some varieties of tool steels that will retain their
hardness even when operating at a red heat. Newton, 1

red heart

A harmless reddish core, sometimes found in fire clay refractories.

red hematite

A compact columnar variety of hematite with a brownish-red to iron-black
color; so called to contrast it with limonite and turgite.
Syn:ironstone clay

redingtonite

A monoclinic mineral, (Fe,Mg,Ni)(Cr,Al)₂ (SO₄ )₄ .22H
₂ O ; halotrichite group; forms reddish-purple fibrous masses.

Red I plate

See:selenite plate

red iron froth

A variety of hematite. Fay

red iron ore

See:hematite

red iron vitriol

See:botryogen

redistilled metal

Metal from which the impurities, usually zinc and mercury, have been
eliminated by selective distillation.