Guild Wars 2

Is the only way to get Prismatic Lodestone recipe is through the Bolt II collection completion?

I want to make Nevermore, one of the ingredients is “Prismatic Lodestone”, I researched it on Wiki and it said one way to get the recipe is from Bolt II collection completion…
Is there any other (easier) way to get this recipe?

I personally find that a bit weird? That we have to half complete a different precursor to make a precursor for an entirely different weapon… >_>

Prismatic Lodestones are necessary for all tier 2 precursors, and the recipe is gained from any of the tier 2 collections, not just bolt. So you should get the recipe upon completing Nevermore collection 2