Spelunker Potion

The Spelunker Potion is a buff potion which buffs the player with Spelunker. The buff gives a slight glow to all nearby ores, gems, chests, Crystal Hearts, pots, and alchemical herbs. The buff lasts for 5 minutes, but can be cancelled at any time by right-clicking the icon. Since it faintly illuminates the surrounding blocks, you might be able to see caves that contain ore on the walls.

Every type of ore will be displayed in a specific colour:
 * Copper has a reddish tone.
 * Iron is red and blue, flashing.
 * Silver has a blue shade.
 * Gold looks almost like copper, with a slight yellow tint.
 * Demonite is very hard to distinguish from silver. Since it always gives off a glow, no Spelunker is needed for searching it.