Dwarves are to Orcs; as Fae/Elves are to Humans.
Both Dwarf and Elf would agree on it.
Saying that if only two types were on a planet, the best pair would be Elf and Dwarf. Confiding apart that they knew their paths would rarely cross. Only when it was a crisis.
Almurgical sense is prevalent among dwarves. They sense metals in proximity and often mine with only a glowworm in a vial. Running hands across underground walls. Hammering to dust a section here, a section there.
There was a special ore. It would move. Dust spread lightly over the palm. Left long enough under an attentive gaze, the special ore grains would separate from the other dust.
The fae only learned of this alloy during a health crisis. A very sick child was brought to a gifted healer.
The healer could perceive the internal damage, but was reluctant to spend down her life force for a dangerous tropi-surgical process.
The father offered "Everything he has and will ever have."
After they cured the child, the fae received a small bit of ore that rolled out like a worm.
Uncurling on a wood plank to the surprise of the healer.