That Nauvis stone doesn't have a very high metal content, but metallic asteroids do!

Melt down metallic asteroids to get lava and access all of its amazing proprieties on planets other than Vulcanus!
It does take a lot of material though, so be prepared to make harvester space platforms!

You will also need calcite, which is made though calcite forming.
This process takes an absurd amount of water and some steam, as well as time.

The mod design tries to ensure that Vulcanus is still the optimal planet for bulk manufacturing things like fast belts, as it has infinite lava.
With enough infrastructure though, you could probably get similar results on other planets.

List of all features:
Asteroid Melting Technology (Available after Foundry)
Metallic Asteroid Melting Recipe (Foundry)
Calcite Forming Recipe (Chemical Plant)