mica), of a deep-black color, usually occurring in small, rather inelastic scales. It contains a large amount of iron." />
Lepidomelane
The Century Dictionary and Cyclopedia
noun.
A species of the mica group (see mica), of a deep-black color, usually occurring in small, rather inelastic scales. It contains a large amount of iron.
the GNU version of the Collaborative International Dictionary of English
noun.
An iron-potash mica, of a raven-black color, usually found in granitic rocks in small six-sided tables, or as an aggregation of minute opaque scales. See mica.