| Webster's Online Dictionary |
| Domain | Definition | ||
| Mining | A monoclinic mineral, BaMn8 O16 ; cryptomelane group; pseudotetragonal; massive, botryoidal, stalactitic, or prismatic with deeply striated faces; commonly associated with pyrolusite.CF:romanechite. (references) | ||
Source: compiled by the editor from various references; see credits. | Top | ||