Salt Flat, Death Valley National Park
It appears the valley is still rich with borates minerals, which in turn the boron comes from. Borates are minerals containing boron, fifth element on Periodic Table, trace amounts exist in rock, soil, water, plants, and people. Boron-containing ores are among the rarest minerals in the world, and used in a variety of household and commercial products. How are borates used? 43% glass, 17% detergents, 12% ceramics & enamels, 5% plant fertilizers, and 23% other uses such as wood treatment, flame retardants, pest control, medicines, cosmetics, nuclear containments, circuit boards, and list can continue.
The Salt Flats are made up of dried salt crystals which create erratic geometic patterns on the desert floor. This photo was taken from the highway, from quite a distance - another great view is from Dante's View, where you can see the full vista.
At the Badwater Basin view area there is an interpretive sign pointing out the Salt Flats. However what is shown in the photo is not what is at Badwater Basin. What is at Badwater Basin is what looks like a large slick river of frozen ice. But its not. It is salt, smooth and almost translucent as you can see in the second and third photos.
To see something different, again, the drive down West Side Road has "rivers" of crystallized salt flats as seen in the last two photos. They weave their way through that side of the Devil's Golf Course.