sand - dune sand - fine-grained yellow-brown dune sand derived from a sandstone member of the Menefee Formation in New Mexico - set of two 2-ounce jars It has a similar structure

It has a similar structure to minerals in the serpentine group

Quartz is resistant

Sand is derived from whatever materials are locally available

There is little lightning activity in the Sahara today

This medium-grained sandstone is composed primarily of quartz with feldspar and some biotite

sand - dune sand - fine-grained yellow-brown dune sand derived from a sandstone member of the Menefee Formation in New Mexico - set of two 2-ounce jars It has a similar structureThe Allison Member of the Upper Cretaceous Menefee Formation is a cliff forming yellow brown sandstone. As it weathers, sand grains picked up by the wind form local small dunes north of Crownpoint, New Mexico. The grains in these dunes are very fine, similar in size to the grains in the pink dune sand that is derived from the Jurassic Navajo Sandstone in Utah. It would be instructive for students to compare these two dune sands both fine grained but