Abstract

The evidence for discrediting the mineral is analyzed to show that the natural mineral cannot be regarded as a mere mixture of hematite, anatase, rutile and possibly ilmenite. Also it cannot be regarded as simply weathered ilmenite, though it may possibly be an alteration product of ilmenite formed under hydrothermal or metasomatic conditions. It is concluded that the mineral arizonite represents a specific and unique, though somewhat rare and unstable chemical compound. This is also supported from the author's separate work in the system Fe 2 O 3 -TiO 2 .

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