gummite

[ guhm-ahyt ]
/ ˈgʌm aɪt /

noun Mineralogy.

a yellow to red alteration product of pitchblende and a minor ore of uranium, having a greasy luster and occurring in gumlike masses.

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Origin of gummite

1865–70; orig. German Gummit. See gum1, -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for gummite

gummite
/ (ˈɡʌmaɪt) /

noun

an orange or yellowish amorphous secondary mineral consisting of hydrated uranium oxides
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012