Zimbabweite is a mineral; formula (NaK)2PbAs(NbTaTi)O18. It is generally classed as an arsenite but is notable for also containing niobium and tantalum. A yellow brown minral with orthorhombic crystal habit and a hardness of 5. It was discovered in 1986 in kaolinizedpegmatite, i.e. weathered to clay, in Zimbabwe.
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