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Adonalsium'sSpren

where did Vasher get that aluminium?

Question

so, if Nightblood is sheathed in aluminum then where did Vasher get the metal for the sheath? As far as I can tell, there is no way to use BioChroma to make aluminum.

so, where did he get it?

Thank You!

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aluminium is very common everywhere in the universe, but it binds very tightly with oxygen, so it is extremely difficult to extract from its rocks. in our world we only managed it in the XIX century, and before the modern process it was more expensive than gold.

from what we've seen, nalthis does not have the technology to smelt aluminium. it requires some relatively advanced chemistry.

however, this is not insurmontable. there are three options:

- nalthis is chemically more advanced than we know. we simply did not saw enough of their society, plus there is a whole world out there of which we've seen very little.

- nalthis has some native aluminium. It is debated whether metallic aluminium could exhist in some volcanoes, in very specific geochemical conditions. it is not completely implausible. we know that scadrial had some such aluminium in the ashmounts, so there is at least a precedent established for the cosmere. it could also come from an asteroid, just like some ancient people's only source of metallic iron were fallen asteroids, an asteroid with a high amount of aluminium is also possible

- it is simply possible vasher got it from some other planet. roshar knows aluminium, and there are some WoBs hinting at an early contact between vasher and roshar.

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Alternatively, I know it's been referenced that aluminum falls from the sky in some places.

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Posted (edited)

I would assume it was simply mined like any other metal.  It's naturally present on many of the worlds, just like Scadrial.  Though since we know the 5 Scholars went world-hopping before Nightblood was created, they could have gotten it off-world as well.  It's rare, but not unheard of, for Aluminum to exist in it's elemental form, but there are also a number of chemical processes that would let them extract it from the various ores and gems.  Even on Roshar where it's said to be available only via soulcasting or meteors, that cant actually be true because there are naturally occurring aluminum-based gems.   

Edited by Quantus
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Supposedly, Nightblood was modeled after Shardblades, so Vasher and others had been to Roshar and come back to Nalthis before Vasher eventually took up more permanent residence on Roshar. Roshar has pretty easy access to aluminum through Soul Casting, so he probably just had a sheath made and then paid to have it Soul Cast. 

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