sand - orange-tan dune sand with iron-oxide coated grains derived from the Navajo sandstone in the San Rafael Swell - 250 ml display bottle with ground glass stopper and contributes sand to small

and contributes sand to small dunes near its base

We have student and hand specimens of the Navajo Sandstone in stock

When this sand is gone

We prefer that students see chalcopyrite as it comes from the mine

similar in size to the grains in the pink dune sand that is derived from the Jurassic Navajo Sandstone in Utah

sand - orange-tan dune sand with iron-oxide coated grains derived from the Navajo sandstone in the San Rafael Swell - 250 ml display bottle with ground glass stopper and contributes sand to smallTransported from the Appalachians by a continent spanning river system, the Navajo was deposited during the Jurassic as sand in a vast coastal and inland dune field, which subsequently became lithified into a sandstone. Near Hurricane, Utah this sandstone is 2,400 feet thick. It is weathering and forming new dunes where it is picked up by the wind and redeposited. A hematite coating gives this quartz sand its color. The Navajo sandstone is widely