Glowstone

Glowstone is a mineral found in The Abyss that is used for Delvers' headlamps. They are constructed from the Glowswtone itself, an iron can, an airtight glass container, a wire, a processed talon crystal, and some water.

Description
When certain frequencies are applied to a polished Glowstone, it will produce light. It doesn't produce heat, which makes it an ideal light source. However, when under pressure, it will explode easily.

Due to their volatile nature, they can also be processed into makeshift explosives.

Trivia

 * During the fight with Bondrewd, Reg uses a "Glowstone bomb" to disarm Bondrewd of one of his Sparagmos.
 * The Seeker Camp is equipped with Glowstone lanterns which can be set to emit a high output if a lot of luminance is needed.
 * Glowstones processed into lanterns are the main light source while delving, and consist of a mineral that can only be mined in the Abyss. It glows when a constant vibration is applied, and is a dangerous item that explodes when subjected to a large impact or pressure.