gum mite

gummite

[guhm-ahyt]
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.

Origin:
1865–70; orig. German Gummit. See gum1, -ite1

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World English Dictionary
gummite (ˈɡʌmaɪt)
 
n
an orange or yellowish amorphous secondary mineral consisting of hydrated uranium oxides

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