Zimbabweite is a yellow brown mineral with orthorhombic crystal habit and a hardness of 5, with formula (Na,K)2PbAs4(Nb,Ta,Ti)4O18.

[2] It is generally classed as an arsenite but is notable for also containing niobium and tantalum.

It was discovered in 1986 in kaolinized pegmatite, i.e. weathered to clay, in Zimbabwe.

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