The Tintic Quartzite is a horizontally bedded quartzite with occasional cross-bedded units that are mostly found at the base. In Rock Canyon, just East of Provo, UT, the Tintic Quartzite is a mostly well sorted quart metasandstone deposited by a nearshore marine environment, worked by longshore currents. In later stages, sediment transport was offshore in deeper water.. Grain sizes range from sub-millimeter sand grains to pebbles of quartz. In central Utah the Tintic Quartzite forms an eastward-thinning wedge between any two given time-horizons.