SG Heritage Dictionary

Elvan [Adjective] Webster's Dictionary 1913

1. Pertaining to elves; elvish.

2. Of or pertaining to certain veins of feldspathic or porphyritic rock crossing metalliferous veins in the mining districts of Cornwall; as, an elvan course.

Elvan [Noun] Webster's Dictionary 1913

Alt. of Elvanite

Elvanite [Noun] Webster's Dictionary 1913

The rock of an elvan vein, or the elvan vein itself; an elvan course.