| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Hair pyrite | Chemistry | Brass-yellow to bronze-yellow rhombohedral mineral; it usually has traces of cobalt, copper, and iron, and is often tarnished. Millerite generally occurs in fine hairlike or capillary crystals of extreme delicacy, chiefly as nodules in clay ironstone. Source: European Union. (references) | |
| Hair pyrite | Mining | See: millerite. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
