Brookite from Moses Hill, Magnet Cove, Arkansas, USA


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A small but sharp and lustrous individual brookite crystal from Moses Hill, Magnet Cove, Arkansas, U.S.A

Mineral Group  oxide
Composition  TiO2
Origin  Moses Hill, Magnet Cove, Arkansas, USA
dimension (cm)  0.7×0.7×0.5
weight (g)  1

This is one of the three main forms of titanium dioxide. It forms distinct and unique crystals, and is often associated with the two other minerals it is polymorphous with, Rutile and Anatase. Brookite almost always forms together with Quartz, and is occasionally entirely included within a Quartz crystal.

It is named in honor of Henry J. Brooke (1771-1857), an English mineralogist who specialised in crystallography and discovered several new mineral species.

see Wikipedia for more

Additional information

Weight 1 g
Dimensions 0.7 x 0.7 x 0.5 cm