What does "rutile" mean?

The most frequent of the three polymorphs of titanium dioxide, crystalizing in the tetragonal system, TiO₂.

Rutile

Common synonyms include: rutile-bearing, rutile-phase, rutile-rich, rutile-type, tetragonal rutile, titania mineral.

noun

noun ·2 syllables ·Rare ·Advanced level

Noun

1
The most frequent of the three polymorphs of titanium dioxide, crystalizing in the tetragonal system, TiO₂. countable, uncountable
2
a mineral consisting of titanium dioxide in crystalline form; occurs in metamorphic and plutonic rocks and is a major source of titanium wordnet

From Latin rutilus (“red”) because of its common color, named in 1803.