sand - gypsum sand from Lake Lucero - 250 ml glass display bottle with ground glass stopper which filled a connected grouping

which filled a connected grouping of basins in Nevada east of Reno

It is mined at a small number of sites as an industrial mineral

but bottles from our regular supplier look like they were made by someone working remotely

We could have run it through a concentrator to increase the garnet content

These sediments were rapidly and deeply buried

sand - gypsum sand from Lake Lucero - 250 ml glass display bottle with ground glass stopper which filled a connected groupingThis is the sand that forms the dunes at White Sands National Monument. It forms as gypsum crystals on the surface of Lake Lucero as it evaporates in the summer. Blown by the wind, the crystals break down and are transported into the White Sands dune field to the east. One dune, shown in the field photo, has escaped the National Monument and is encroaching on US Highway 70. That's where this sand was collected. The gypsum was deposited on the sea