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Gummite is a
yellow amorphous mixture of
uranium minerals, oxides, silicates, and
hydrates of uranium,
derived from the
alteration of uraninite. It is...
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which are
brilliantly coloured and fluorescent. The most
common are
gummite (a
mixture of minerals),
autunite (with calcium),
saleeite (magnesium)...
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Yttrogummite is an yttrium-bearing
variety of
gummite mineral. It is a rare
earth mineral containing relatively large amounts of the
yttrium earths. It...
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disseminated veinlets of pitchblende, with
secondary metatorbernite, autunite,
gummite and gold, with
minor pyrite,
galena and chalcopyrite. Gold
occurred as...
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minerals such as
soddyite and w****site, as well as
mineral complexes such as
gummite.
Other elements that have
multiple oxidation states include copper (which...
