Low Moor Iron
This iron is manufactured under exceptional conditions, as both ore and fuel employed for making the pig iron used in their forges are of special quality, and are both obtained within their own premises. The ore is a brown ironstone, containing after calcination 42 per cent of metal, and is found in the coal-measures of the neighborhood. Even the limestone used for flux comes from the same county--Yorkshire, England. See ORES. Lug (or snug, in some localities) is an extension-piece cast on loam-plates for the purpose of handling and lifting by whatever method is in vogue. Some have staples of wrought iron cast in them to receive a hook, others again have simply a hole in the lug for that object but unless required for some special reason, a plain lug is amply sufficient when chains or slings are used for lifting with. See SNUG; PIN AND COTTER.
Lustre is the brightness on the outer surface of a mineral, or in the interior when newly broken, as in pig iron, etc. When it can be seen plain at a distance, it is then termed splendent; if weak, shining; when the lustre is to be seen only at arm's length, glistening; and glimmering when it must be held close to see the shining points. When the surface is without lustre it is termed dull.
Lustre on Iron.--See IRON-LUSTRE.