the.com/brookite

titanium dioxide's rebel twin, born only when the planet really cranks up the heat

means Brookite is a brownish-to-black mineral form of titanium dioxide (TiO2), one of three natural crystal structures that this compound can take.

from Named in 1825 for the English mineralogist Henry James Brooke, a barrister-turned-crystallographer who studied the geometry of crystals; the suffix '-ite' is the standard tag for minerals, from the Greek '-ites' meaning 'belonging to' or 'of the nature of.'

same recipe
identical formula to rutile and anatase, wildly different crystal
named for
English mineralogist Henry James Brooke, 1825
high-pressure kid
forms in hot hydrothermal veins and metamorphic rock
rarest sibling
least common of titanium dioxide's three natural forms
orthorhombic
crystallizes in a different system than its twins
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