Flint

is a common resource with a black, rough appearance.

Uses
can be use to create sparks by hitting it against another, Stone or Ore. This spark can be used to light torches, lanterns and Fire.

is also used to craft primitive weapons and tools by attaching them in various ways to the ends of sticks. This is the earliest available equipment to craft, and are commonly the first tools and weapons available to players aside from Rusty Tools, which can be found lying on the ground in various areas among the map.

Obtaining
can be found:
 * around a new town
 * in loot containers on a Cave Structure
 * by Mining any type of Ore Vein.
 * inside Chests.
 * by the sandstone bridge