Search the Dictionary

Called also specular iron, oligist iron, rhombohedral iron ore, and bloodstone. See Brown hematite, under Brown.

se with internal firelike reflections due to the presence of minute crystals, probably of hematite; sunstone.

Hematite, an ore of iron yielding a blood red powder or "streak."

or Indian; rye and Indian bread. [U.S.] -- Brown coal, wood coal. See Lignite. -- Brown hematite or Brown iron ore (Min.), the hydrous iron oxide, limonite, which has a brown streak. See Limonite. -- Brown holland. See under Holland. -- Brown paper, dark colored paper, esp. coarse wrapping paper, made of unbleached…

ous to the chromates and sulphates. -- Ferric oxide (Chem.), sesquioxide of iron, Fe2O3; hematite. See Hematite.

amianthus. -- Fossil farina, a soft carbonate of lime. -- Fossil ore, fossiliferous red hematite. Raymond.

Same as Hematite.

Of or pertaining to hematite, or resembling it.

tallic element, being of almost universal occurrence, usually in the form of an oxide (as hematite, magnetite, etc.), or a hydrous oxide (as limonite, turgite, etc.). It is reduced on an enormous scale in three principal forms; viz., cast iron, steel, and wrought iron. Iron usually appears dark brown, from oxidation or…

of the genus Phaseolus (P. vulgaris). See under Bean. -- Kidney ore (Min.), a variety of hematite or iron sesquioxide, occurring in compact kidney-shaped masses. -- Kidney stone. (Min.) See Nephrite, and Jade. -- Kidney vetch (Bot.), a leguminous herb of Europe and Asia (Anthyllis vulneraria), with cloverlike heads…

s, of a dark brown color, yellowish brown powder. It includes bog iron. Also called brown hematite.

and made malleable by heating then for several days in the presence of some substance, as hematite, which deprives the cast iron of some of its carbon.

a metal, thus forming an ore. Thus, in galena, or lead ore, sulphur is a mineralizer; in hematite, oxygen is a mineralizer.

A impure earthy ore of iron or a ferruginous clay, usually red (hematite) or yellow (limonite), -- used as a pigment in making paints, etc. The name is also applied to clays of other colors.

Hematite or specular iron ore; -- prob. so called in allusion to its feeble magnetism, as compared with magnetite.

Of or pertaining to hematite.

m of forms including the rhombohedron and scalenohedron. Rhombohedral iron ore (Min.) See Hematite. -- Rhombohedral system (Crystallog.), a division of the hexagonal system embracing the rhombohedron, scalenohedron, etc.

R.] "Look once more, ere we leave this specular mount." Milton. Specular iron. (Min.) See Hematite.