sand - orange-tan dune sand with iron-oxide coated grains derived from the Navajo sandstone in the San Rafael Swell - set of two 2-ounce jars muscovite forms large books and

muscovite forms large books and can be cleaved into large sheets

Untreated chalcopyrite should look brassy

We don't have locality data other than "Mexico

It is famous for the minerals mined from pegmatites

To make the white perlite "rice krispies" found in garden supplies and nurseries

sand - orange-tan dune sand with iron-oxide coated grains derived from the Navajo sandstone in the San Rafael Swell - set of two 2-ounce jars muscovite forms large books andTransported 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