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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.

References

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	'''Wyartite''' Ca<sub>3</sub>U(UO<sub>2</sub>)<sub>6</sub>(CO<sub>3</sub>)<sub>2</sub>(OH)<sub>18</sub> ·3-5(H<sub>2</sub>O) 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]].		'''Wyartite''' [[calcium\|Ca]]<sub>3</sub>[[uranium\|U]](U[[oxygen\|O]]<sub>2</sub>)<sub>6</sub>([[carbon\|C]]O<sub>3</sub>)<sub>2</sub>(O[[hydrogen\|H]])<sub>18</sub> ·3-5([[water\|H<sub>2</sub>O]]) 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]].		Determination of the structure of wyartite provided the first evidence for a [[pentavalent]] uranium mineral. Like all uranium minerals it is [[radioactive]].