Pseudobrookite

Pseudobrookite is a rare mineral species that is classified as a lead-free member of the ilmenite group of minerals. It has the chemical formula Fe TiO3 and is composed of iron, titanium, and oxygen. Pseudobrookite is characterized by its orthorhombic crystal system and typically forms crystals or aggregates that are often metamict, meaning they have undergone radiation damage and alteration.

Pseudobrookite is commonly found in high-temperature metamorphic and igneous environments, such as in association with metamorphic rocks, pegmatites, and granulites. It is relatively rare and typically identified in rocks that have been subjected to high-grade metamorphism. The mineral is often found in association with other titanium minerals, such as rutile and anatase.

Pseudobrookite has been found in a number of locations around the world, including in the United States, Australia, and Africa. In the United States, it has been identified in the states of New Hampshire, Massachusetts, and Colorado. In Australia, pseudobrookite has been found in the states of New South Wales and Western Australia.

Pseudobrookite is of interest to mineral collectors due to its rarity and association with other titanium minerals. It is also of interest to geologists due to its significance in understanding high-temperature metamorphic processes. However, the mineral is relatively easy to confuse with other titanium minerals, such as anatase and rutile, due to its similar appearance and properties.

Pseudobrookite is a valid mineral species that has been recognized by the International Mineralogical Association. Its discovery and characterization have contributed to a greater understanding of the geochemistry and mineralogy of high-temperature metamorphic rocks.