sand - gypsum sand from Lake Lucero - 250 ml glass display bottle with ground glass stopper but bottles from our regular

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

This sand is particularly interesting because of the angular nature of the quartz grains

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

It is shown in the field photo

The magnesite is calcined or burned with charcoal at temperatures above 900˚C to form magnesium oxide used in the chemical industry and in the heat resistant refractory bricks used in steel making to protect furnace walls and ladles from hot liquid steel

sand - gypsum sand from Lake Lucero - 250 ml glass display bottle with ground glass stopper but bottles from our regularThis 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