Schoepite

minerals

uraninite

soddyite

rutherfordine

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Formula: (UO2)4O(OH)6(H2O)6
Oxide containing uranium, schoepite group
Specific gravity: 4.8
Hardness: 2&3189;
Streak: Yellow
Colour: Amber-yellow, lemon-yellow, or sulphur-yellow
RADIOACTIVE
Environments

Sedimentary environments
Hydrothermal environments

Schoepite is a rare alteration product of uraninite in hydrothermal uranium deposits; it may also form directly from dehydration of ianthinite (HOM) and it may itself dehydrate spontaneously at room temperature to metaschoepite and paraschoepite (Webmin, Mindat), and any given sample is likely to contain at least two and possibly all three of these minerals (Dana).
Common associates include becquerelite and ianthinite (Mindat).

At the type locality, the Shinkolobwe Mine, Kambove District, Haut-Katanga, Democratic Republic of the Congo, schoepite occurs in the oxidised zone of a copper-uranium deposit as an alteration product of ianthinite (Mindat).
Associated minerals include uraninite, becquerelite, billietite, vandendriesscheite, fourmarierite, ianthinite, curite, soddyite, rutherfordine and uranophane (HOM).

At Wolsendorf, Bavaria, Germany schoepite occurs with ianthinite and becquerelite (Dana).

At Beryl mountain, Akworth, New Hampshire, USA, schoepite occurs as pseudomorphs after uraninite (Dana ).

At the Cherkasar deposit, Uzbekistan, schoepite occurs with paraschoepite, arsenuranylite, metazeunerite, uranospinite and novákite (HOM).

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