gümbeliten.
/ˈɡʊmbəlʌɪt/ Mineralogy.
A magnesium-containing variety of hydromuscovite.
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the world > the earth > minerals > types of mineral > silicates > phyllosilicate > [noun] > mica > muscovite > varieties
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gümbelite1871
hydro-muscovite1889
1871 Jrnl. Chem. Soc. 24 325 (heading) Gümbelite, a new mineral.
1962 W. A. Deer et al. Rock-forming Minerals III. 15 A fibrous magnesium-bearing hydromuscovite called gümbelite was investigated by Aruja (1944). Its formula is approximately (K, H2O)2(Al3Mg)Si6Al2O18(OH)6 and it crystallizes in the ZM1 polymorph.
This entry has not yet been fully updated (first published 1933; most recently modified version published online March 2021).
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