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Mod Pack(s)

FTB Monster, Magic World 2

GeoStrata is a World Gen mod that adds various realistic rock types and cave crystals.


Crystals are a semi-rare formation in caves, they come in an array of colors, all of which give different, brief potion effects. They have a range of 3 blocks from the Crystal When broken with a Silk Touch-enchanted tool the crystal block will drop, otherwise shards of that crystal will drop.

Crystals can be used to create Crystal Lamps which give no effects and the much more costly Potion Crystals which give level III effects and in a greater range than the raw cave crystals.

All of the effects listed below will last for 10 seconds. Effects marked with * do not affect players.

Color Overworld Nether
Blue Night Vision Night Vision
Cyan Water Breathing Hunger
Grey Slowness* Blindness
Green Poison* Poison
Light Blue Speed Slowness
Light Grey Weakness* Weakness
Lime Jump Boost Lose Jump Ability
Magenta Regeneration Regeneration*
Red Resistance Instant Damage (1/2 heart)
Orange Fire Resistance Fire Damage - 2 secs
Pink Strength Strength*
Yellow Haste Mining Fatigue
White Clear Potion Effects Invisibility
Brown Saturation Nausea
Black Clear Mob AI Wither
Purple Gives XP Takes XP


When broken all of these will drop their cobblestone type; only a Silk Touch-enchanted tool will yield the specific block type. All of the blocks listed have their own type of cobblestone, stone and bricks. The layers listed is an approximation of where they have been most seen.

  • Basalt (any layer)
  • Gneiss
  • Granite
  • Granulite
  • Hornfel
  • Limestone
  • Marble
  • Migmatite (below layer 24)
  • Onyx (near lava only, depth 0-24)
  • Opal (between 35 and 45)
  • Peridotite (below layer 24)
  • Pumice (below layer 24)
  • Quartz (below layer 50)
  • Sandstone (any layer)
  • Schist
  • Shale (between layer 50 and 60)
  • Slate