The story
- Ancient Greek · derived fromστιλπνός“glittering”
- English todaystilpnomelane
Ancient Greek στιλπνός (stilpnós, “glittering”), and μέλᾱς (mélās, “black”).
Etymology from Wiktionary, CC BY-SA 4.0.
stilpnomelane
Today it means: A metamorphic phyllosilicate mineral of the mica group, having the chemical formula K(Fe²⁺,Mg,Fe³⁺)₈(Si,Al)₁₂(O,OH)₂₇. Full definition →
Ancient Greek στιλπνός