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Metaheinrichite


Metaheinrichite : Ba(UO2)2[AsO4]2 · 8H2O

6 x 4.2 cm specimen of siliceous jasperoid with a black crust of uraninite (?) and bright canary yellow crystals of metaheinrichite - a uranium bearing mineral and also quite fluorescent under SW UV light. This specimen was formerly owned by Al McGuinness (mcguinnessite is named after him). The largest crystals on this specimen are 2.5 mm across.

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