Zirkelite

Zirkelite is an oxide mineral (Ca,Th,Ce)Zr(Ti,Nb)2O7.

Zirkelite was first discovered in Brazil. It uccurs as well-formed fine sized crystals. Hardness 5.5. Colour black.

It is also found in Canada, Kazakhstan, Norway, Russia, South Africa, the United Kingdom, and the USA.

See also

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