ThaumCraft 2 is a mod that introduces a new magical power source, called Vis (pronounced veez). Vis can be created using several different methods.
A device used to convert items into liquid vis.
A device that is used to research new and better items to craft.
Items ranging in rarity from common to exceptional can be studied at a Quaesitum for better results than normal blocks.
A list of recipes added by ThaumCraft 2.
Black MonolithsEditBlack monoliths are structures found on the overworld which can only be opened by inserting the correct vis crystals into its adjacent sides. To see the "combination" to open the monolith, you must craft and wear the Goggles of Revealing. If a crystal is inserted into an incorrect slot, it explodes, dealing minor damage and destroying the crystal. However, if the correct crystals are placed in the correct slots, a hole that goes directly to bedrock layer opens. Jumping down will kill you, but if you descend safely, you gain access to unique chests and artifacts useful for research at your Quaesitum.
While wearing the goggles of revealing, you will see colored symbols on 4 of the adjacent blocks. Pink= Vis Crystals Purple=Taint Crystals Green=Earthen Crystals Yellow=Vapourous Crystals Red=Fiery Crystals Blue=Aqueous Crystals.It also works to place crystals at random but will take a little while longer then having Goggles of Revealing at hand.
Simply holding the proper crystal and right-clicking on the right space will open the monolith.
One other way is to find a scroll of mining, and simply right click on any block in the monilith. at some point you will no longer be able to, however any block you right click will be destroyed. (the black monolith blocks). You will not be able to destroy any more when your HUNGER runs out (scroll uses hunger to do its thing). Pressing R when holding the scroll will make it take out a whole level of the monoloth, though if you are sand tunneling down, this is unnessisary.