Elv"an (?), a.
1.
Pertaining to elves; elvish.
2. Mining
Of or pertaining to certain veins of feldspathic or porphyritic rock crossing metalliferous veins in the mining districts of Cornwall; as, an elvan course.
© Webster 1913.
Elv"an, Elv"an*ite (?), n.
The rock of an elvan vein, or the elvan vein itself; an elvan course.
© Webster 1913.