arizonite

arizonite

[‚ar·ə′zō‚nīt]
(mineralogy)
Fe2Ti3O9 A steel-gray mineral containing iron and titanium and found in irregular masses in pegmatite.
(petrology)
A dike rock composed of mostly quartz, some orthoclase, and accessory mica and apatite.
References in periodicals archive ?
The orebody itself is part of a muscovite-rich quartz vein in arizonite.
In the mining area, the orebodies occur in muscovite-rich quartz veins and arizonite (a rock type composed of 80% quartz and 18% alkali feldspar with accessory mica and apatite).