Gummite

Gummite is a yellow amorphous mineral, a mixture of uranium minerals, oxides, silicates, hydrates and hydrous oxides of uranium, derived from the alteration of uraninite. It is named for its gum-like consistance.

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The mineral was also known under various names, mostly because of different origins of the samples, now identified as one

• Eliasite, from Elias, the name of a mine at Jáchymov, (Joachimsthal).
• Coracite, a variety from Lake Superior
• Pittinite
• Pechuran
• Urangummit
• Uranogummite

References

• Gummite at uraniumminerals.com