Anatase
ID: 101
Anatase
Chemical Formula
TiO₂
Hardness (Mohs)
5.5–6
Crystal System
Tetragonal
Streak
Pale yellowish white
Luster
Adamantine to submetallic
Diaphaneity
Transparent to Opaque
Color
Black, reddish to yellowish brown, dark blue, gray
Crystal Habit / Mode of Occurrence
tabular
Density
3.79–3.97
Fun Facts
Anatase is a metastable form of titanium dioxide and is often found in minor concentrations in igneous and metamorphic rocks. It belongs to the Rutile Group and is brittle.