[quote=@Kho]
<Snipped quote by LokiLeo789>

No explicit mention has been made of obsidian arrowheads, but I assume they're to be found implied somewhere. What's a lined blade?
[/quote]

Like Aztec obsidian lined swords.

[quote=@BBeast]
<Snipped quote by LokiLeo789>

No one's made obsidian things yet, since most of the world lacks volcanoes. But yes, the Ironheart ranges are volcanic, so you should find some obsidian there.

EDIT: At least, no one has explicitly made obsidian yet.
[/quote]

So if he were to harvest it, no one would object?