Noriel Sylvire's Minerals Core Modpack
Noriel_Sylvire

An API for automatically registering recipes, nodes and ore generation.

Trucraft
mt-mods

An alternative crafting system done entirely in the world.

Floof
Momo

Add BicBiomeCraft inspired biomes, tools, and items.

Sticks Stones
MikeRedwood

Makes Sticks from leaves and scatters small stones

Purple ore
X-DE

Adds new purple ore to floating islands and caves from height 200 to 31000.

treasures
ademant

Treasure nodes with useful items

Dirt Tunneler
Neuromancer

Makes dirt deeper and you can tunnel through it just by walking through it. Press spacebar/shift to tunnel upward/downward with auto placed ladders.

Underground Survival Lighting
Arkatron

If you like underground light in survival, use this mod, it can help that.

Obdy
Sires

Adds some pretty OP tools :)

Mud
Blocky Player

Adds stylish mud blocks and even blocks you can walk through. Setup traps, secret rooms and much more!

Silver
Jackknife

adds silver ore and tools

Too many ores
TeufloV

This adds 53 new ores. But most of them are useless.