There are dozens of dark blue Anatase crystals sprinkled upon this matrix. These crystals are tiny, but visible to the naked eye, but best seen with a microscope. Peculair are the 2-4mm Dolomite crystals which are green. They are gemmy in spots and have good rhombic forms.
Anatase
Formula
TiO2
Crystal System
Tetragonal
Crystal Habit
Pyramidal, Tabular
Cleavage
Perfect, Distinct, None
Luster
Adamantine - Resinous
Color
black, reddish brown, yellowish brown, dark blue, gray