I don't think there is enough extractable riversand on planet earth for that amo... | Hacker News

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		missedthecue on July 26, 2022 \| parent \| context \| favorite \| on: Saudi Crown Prince unveils plans for $500bn struct... I don't think there is enough extractable riversand on planet earth for that amount of glass.

dmurray on July 26, 2022 [–]

Glass is made from melted sand, so taking the raw materials from the desert is just fine.

missedthecue on July 26, 2022 | | [–]

Desert sand doesn't contain enough silica. It's mostly gypsum.

Ekaros on July 26, 2022 | | [–]

Yes, that is easy. Now the concrete inside this thing on other hand...

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