stilpnomelane Meaning, Definition & Usage

Stilp*nom"e*lane noun
Etymology
Gr. stilpno`s shining + me`las, -anos, black.
Definitions
  1. (Min.) A black or greenish black mineral occurring in foliated flates, also in velvety bronze-colored incrustations. It is a hydrous silicate of iron and alumina.

Webster 1913