Lightning Gem

Lightning Gems are upgrade materials in Dark Souls III.

Availability

 * Firelink Shrine
 * Return for trading the Xanthous Crown with Pickle Pee.
 * Irithyll of the Boreal Valley
 * At the end of the main street, near the Church of Yorshka.
 * Archdragon Peak
 * Dropped by Serpent-Men.
 * Dropped by Giant Serpent-Men.

Usage
Infuses a weapon with the Fire element, as well as granting Faith scaling to it.