stilpnomelane

noun

stilp·​no·​mel·​ane
ˌstilpnōˈmeˌlān
plural -s
: a black or greenish black mineral K(Fe,Al)10Si12O30(O,OH)12 (?) occurring in foliated plates, fibrous forms, and velvety bronze-colored incrustations and consisting of a hydrous iron aluminum silicate with a little potassium (specific gravity 2.77–2.96)

Word History

Etymology

German stilpnomelan, from Greek stilpnos glistening + melan-, melas black

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Dictionary Entries Near stilpnomelane

stilly

stilpnomelane

stilpnosiderite

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Cite this Entry

“Stilpnomelane.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/stilpnomelane. Accessed 25 Nov. 2024.

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