Wikia

Philosopher's Stone
Type	Tool
Stackable	No
Data Value	dec. 6126
Mod Included	Equivalent Exchange

Philosopher's Stone is a part of the Equivalent Exchange mod.

The Philosopher's Stone has several features and is the base at which an aspiring Alchemist starts. It can be used to craft the Transmutation Tablet, which has many more functions.

Before you can use the stone, you need to charge it. There is nothing special that goes into charging a Philosopher's Stone, just press V until it is fully charged.

The Philospher's Stone not only gives you the power to change a handful of items into others, but it can also transform the very environment around you! Right Click will transmute certain blocks to others, Shift + Right Click will change a block as well:

Right Click	Shift + Right Click
Stone <=> Cobblestone	Stone ⇒ Grass
Grass <=> Sand	Cobblestone <=> Grass
Dirt ⇒ Sand	Sand ⇒ Cobblestone
Gravel <=> Sandstone	Dirt ⇒ Cobblestone
Water ⇒ Ice
Lava ⇒ Obsidian
Netherrack ⇒ Cobblestone
Logs ⇒ Other logs
Leaves ⇒ Other leaves
Flowers ⇒ Other Flowers
Melon <=> Pumpkin

This effect costs no Fuel. Transmuting large areas at once can incur a cooldown on the effect.

When holding the Philosopher's Stone and pressing C, it allows you to craft in a 3x3 grid just like a crafting table. This is useful in combination with the portable Transmutation Tablet to create anything on the go. However, be cautious, as using the Philosopher's Stone in the crafting grid may cause the stone to pop out of your inventory.

Pressing R will fire a projectile outwards, if it hits a mob it will transform them into another random mob of that disposition, peaceful or aggressive. This effect costs 1 glowstone dust. Mobs added by other mods will turn into a slime or sheep randomly regardless of that mobs disposition.