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iron runner

The spout by which iron flows from the taphole of a blast furnace.
Fay

iron sampler

In the iron and steel industry, a laborer who obtains samples of iron ore
as it is brought into the plant, or samples of semifinished or finished
metal products, such as iron and steel sheets, rails, rods, or bars, and
carries them to the laboratory for routine tests. Also called sampler;
test carrier. DOT

iron sand

A sand containing particles of iron ore (usually magnetite), as along a
coastal area. AGI

iron schefferite

See:pyroxene

iron series

See:magnetite

ironshot

a. Said of a mineral that is streaked, speckled, or marked with iron or an
iron ore. AGI
b. Containing small nodules or oolitic bodies of limonite or hematite;
e.g., an ironshot rock in which the ooliths are essentially composed of
limonite. A limonitic oolith in an ironshot rock. AGI

ironsmith

A worker in iron, as a blacksmith. Standard, 2

iron spar

See:siderite

iron stain

Strongly colored yellowish, reddish, or brownish deposit of iron oxides.
Skow

iron steel

A material formed of iron between steel surfaces, or of steel-located
iron. Standard, 2

ironstone

Any rock containing a substantial proportion of an iron compound, or any
iron ore from which the metal may be smelted commercially; specif., an
iron-rich sedimentary rock, either deposited directly as a ferruginous
sediment or resulting from chemical replacement. The term is customarily
applied to a hard, coarsely banded or nonbanded, and noncherty sedimentary
rock of post-Precambrian age, in contrast with iron formation. The iron
minerals may be oxides (limonite, hematite, magnetite), carbonate
(siderite), or silicate (chamosite); most ironstones containing iron
oxides or chamosite are oolitic. See:clay ironstone; banded ironstone.
CF:iron formation

ironstone cap

A surficial or near-surface sheet or cap of concretionary clay ironstone.
AGI

ironstone clay

See:argillaceous hematite; red hematite.

iron sulfides

See:chalcopyrite; pyrite; marcasite; pyrrhotite.

iron talc

See:minnesotaite

iron vitriol

See:melanterite

ironworker

Person engaged in manufacturing iron or ironwork. Standard, 2

ironworks

An establishment for the manufacture of iron or of heavy ironwork.
Standard, 2

irradiation

Exposure to radiation, as in a nuclear reactor. Lyman

irregular polygon

Polygon in which neither the sides nor the angles are equal.
Jones, 2

irrespirable

Not respirable; not fit to be breathed. Said of mine gases.
Standard, 2; Fay