stilpnomelane

S1T1I1L1P3N1O1M3E1L1A1N1E1

noun

A metamorphic phyllosilicate mineral of the mica group, having the chemical formula K(Fe²⁺,Mg,Fe³⁺)₈(Si,Al)₁₂(O,OH)₂₇.

OriginAncient Greek στιλπνός →
Scrabble 17
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Meanings

nounstilpnomelane (countable and uncountable, plural stilpnomelanes)

plural stilpnomelanes

  1. countableuncountablechemistryA metamorphic phyllosilicate mineral of the mica group, having the chemical formula K(Fe²⁺,Mg,Fe³⁺)₈(Si,Al)₁₂(O,OH)₂₇.

Synonyms & antonyms

Also see
minguetite

Origin

  1. Ancient Greekστιλπνός“glittering”
  2. Englishstilpnomelane

Ancient Greek στιλπνός (stilpnós, “glittering”), and μέλᾱς (mélās, “black”).

More words from Ancient Greek

Full word history & related roots →
Cite this entry
APA

stilpnomelane. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/stilpnomelane

MLA

“stilpnomelane.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/stilpnomelane. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “stilpnomelane,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/stilpnomelane.

Source: stilpnomelane on Wiktionary, CC BY-SA 4.0.