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BROOKITE

BROOKITE

592

$50.00 AUD
$50.00 AUD
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592
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Brookite is an orthorhombic form of titanium dioxide (TiO2) and is one of four recognized natural polymorphs, differing in structure while sharing the same composition. The other three polymorphs are akaogiite (monoclinic), anatase (tetragonal), and rutile (tetragonal). Compared to anatase and rutile, brookite is relatively rare and, like its counterparts, demonstrates photocatalytic properties. It features a larger cell volume, containing eight TiO2 units per cell, in contrast to anatase's four and rutile's two. Common impurities found in brookite include iron (Fe), tantalum (Ta), and niobium (Nb). 

The mineral was named in 1825 by French mineralogist Armand Lévy in honor of Henry James Brooke, an English crystallographer and mineralogist. A specific variety known as arkansite is found in Magnet Cove, Arkansas, and brookite is also located in the Murun Massif on the Olyokma-Chara Plateau in Eastern Siberia, Russia. At temperatures exceeding approximately 750 °C, brookite transforms back into the rutile structure.

Specimen details

To find the dimensions and weight of a specimen, please add the product to your basket. Alle details will appear here. Remove the specimen if unwanted. The numbers under "variant" are the measurements in mm and mostly added weight in grams. Where known, the origin of the specimen is mentioned. The number at the end, is the specimen number in our collection. Colours may vary, due to photography.

Care

It's important to know that many minerals can be effectively cleaned with water. However, before using any cleaning methods, such as dissolvers or ultrasound, please take the time to research online. Improper use of these techniques could potentially harm your specimen.

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