Entry from US English dictionary
Hematite with a metallic luster.
- Gray hematite has a brilliant metallic luster and is known as specular iron ore or looking glass ore.
- The steel-gray crystals and coarse-grained varieties have a brilliant metallic lustre and are known as specular iron ore or looking glass ore.
- Among the valuable specimens of minerals found here may be named, triciliate of iron, sulphuret of bismuth, native copper, specular iron ore, hydrous oxide of iron.
For editors and proofreaders
Syllabification: spec·u·lar i·ron ore
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