Metanováčekite

minerals

novacekite

bassetite

saleeite

Formula: Mg(UO2)2(AsO4)2.8H2O
Hydrated normal arsenate, meta-autunite group
Specific gravity:
Hardness: 2½
Streak: Yellowish white
Colour: Yellow
RADIOACTIVE
Environments

Hydrothermal environments

Metanováčekite reversibly dehydrates from nováčekite under ambient conditions, and is typically pseudomorphous after nováčekite crystals (HOM, Mindat).

Localities

At the type locality, the Anton Mine, Heubach Valley, Wittichen, Schenkenzell, Rottweil, Freiburg, Baden-Württemberg, Germany, metanováčekite is associated with nováčekite (HOM).

At the Sue mine, Arizona, USA, metanováčekite is associated with bassetite and saléeite (HOM).

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