ore

A mineral or an aggregate of minerals from which a valuable constituent, especially a metal, can be profitably mined or extracted.

Favor; grace; mercy; clemency; protection.

Honor; glory.

A Middle English form of oar.

A seaweed, especially Fucus vesiculosus or Laminaria digitata. Compare ore-weed.

A kind of fine wool.

Abbreviations of Oregon.

One of the walls which surround the hearth of a Catalan forge.

In the metallurgical treatment of the residue from burning off the sulphur of pyrites in the manufacture of sulphuric acid this material is mixed with common salt, roasted in a suitable furnace with free access of air, and, after cooling, leached with water to extract salts of copper. The dark-red oxid of iron which is left from the leaching is known as purple ore or blue billy. It is reduced to pulverulent metallic iron and used to precipitate copper from the solution obtained in the leaching.

A metalliferous mineral of rock, especially one which is of sufficient value to be mined.