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Earth Is Running Out of Sand
- thx-2718 3y ago"It is widely distributed in space in cosmic dusts, planetoids, and planets as various forms of silicon dioxide (silica) or silicates. More than 90% of the Earth's crust is composed of silicate minerals, making silicon the second most abundant element in the Earth's crust (about 28% by mass), after oxygen. " https://en.wikipedia.org/wiki/Silicon https://en.wikipedia.org/wiki/Silicon "Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar." https://en.wikipedia.org/wiki/Quartz https://en.wikipedia.org/wiki/Quartz For some reason I don't think we're running out of sand. However like everything else how you aquire it has consequences.