Definify.com
Webster 1913 Edition
Stilpnomelane
Stilp-nom′e-lane
,Noun.
[Gr.
στιλπνόσ
shining + μέλας
, -ανος
, black.] (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.
Definition 2024
stilpnomelane
stilpnomelane
English
Noun
stilpnomelane (countable and uncountable, plural stilpnomelanes)
- (mineralogy) A metamorphic phyllosilicate mineral of the mica group, having the chemical formula K(Fe2+,Mg,Fe3+)8(Si,Al)12(O,OH)27.