The dunes are still moving 5 to 9 feet (1.5 to 3 m) per year and consist of quartz grains, minor amounts of feldspar, biotite, calcite, garnet and magnetite.
The sand consist of quartz grains, with minor amounts of feldspar, biotite, calcite, garnet and magnetite. The dunes are still moving 5 to 9 feet (1.5 to 3 m) per year.
The dunes are still moving 5 to 9 feet (1.5 to 3 m) per year. The sand consist of quartz grains, with minor amounts of feldspar, biotite, calcite, garnet and magnetite.
The dunes are still moving 5 to 9 feet (1.5 to 3 m) per year. The sand consist of quartz grains, with minor amounts of feldspar, biotite, calcite, garnet and magnetite.