Wyartite

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Wyartite Ca₃U(UO₂)₆(CO₃)₂(OH)₁₈ ·3-5(H₂O) is a uranium bearing mineral named after Jean Wyart (1902-1992), mineralogist at the Sorbonne, Paris. Greenish black, black, black violet in color, translucent to opaque orthorhombic crystals presentantion. A hardness of 3 - 4 Mohs. Its other names are Ianthinite (of Bignand), Wyartit and Wyartita. It belongs to the uranium carbonate group of minerals. It is found next to rutherfordine in Shinkolobwe, Shaba, Zaire.

Determination of the structure of wyartite provided the first evidence for a pentavalent uranium mineral. Like all uranium minerals it is radioactive.

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Categories: Uranium minerals | Calcium minerals | Carbonate minerals | Hydroxide minerals | Mineral stubs

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• This page was last modified 05:02, 13 March 2007 by Wikipedia user Tigga en. Based on work by Wikipedia user(s) Vsmith, Bwithh, FlaBot, Jaraalbe and DV8 2XL.
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