/gum"uyt/, n. Mineral.
a yellow to red alteration product of pitchblende and a minor ore of uranium, having a greasy luster and occurring in gumlike masses.
[1865-70; orig. G Gummit. See GUM1, -ITE1]

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      mixture of natural uranium oxides, representing the final oxidation and hydration stages of uraninite, that usually occurs as dense masses and crusts in many of the known uraninite localities. It varies widely in physical properties, appearance, and chemical composition; it usually contains oxides of lead and thorium and large amounts of water. Gummite, named in reference to the gumlike appearance of some varieties, is related to well-defined uranium oxides as limonite and wad are to iron and manganese oxides.

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Universalium. 2010.

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  • gummite — ● gummite nom féminin (latin gumma, gomme) Produit d altération de l uranite (pechblende), exploité comme minerai d uranium …   Encyclopédie Universelle

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  • gummite — noun Date: 1868 a yellow to reddish brown mixture of hydrous oxides of uranium, thorium, and lead …   New Collegiate Dictionary

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  • gummite — gum·mite …   English syllables

  • gummite — /ˈgʌmaɪt/ (say gumuyt) noun a yellow to red alteration product of pitchblende, having a greasy lustre, and occurring in gum like masses; a minor ore of uranium …  

  • gummite — noun a gummy orange mixture of uranium oxides and silicates occurring naturally in the hydration and oxidation of pitchblende • Hypernyms: ↑mixture …   Useful english dictionary

  • List of minerals — This is a List of minerals for which there are Wikipedia articles. Mineral variety names and mineraloids are to be listed after the valid minerals for each letter.For a complete listing (about 4,000) of all mineral names: List of minerals… …   Wikipedia

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