Anyone found a location to farm Noble Bismaltus ore?

[limpid fable]

I've been looking on Ascended Forest realms (so far Antiquated, provisional and herbarial). I've found Noble Hollow and Einaidia, but not Bismaltus.

[spiral grail]

It's a random spawn that shares possible spawn spots with both noble hollow and einaidia, keep trying and you will find it eventually.
But RNG is RNG so it can take many resets before you do.