Gem Store
(Alteration, Enchantment/Charm)

Range:  10 feet per level
Components:  V, S, M
Duration:  1 week per level
Casting Time:  1 turn per 100 pounds
Area of Effect:  100 pounds per level, or 10 cubic feet per level
Saving Throw:  Special

This spell causes unliving, non-undead, non-animated material of any kind to be reduced in size and to be transported into a gem. No material with any intelligence nor any kind of animating or life force may be contained within the gem. Any material can be stored at any time that the wizard has the gem in hand (the gem must still have the required capacity) and the wizard has read gem active. If all these requirements are met, the wizard may add to or take from the gem anything he desires. This gem contains the material in its structure. It is not in itself magically stored. It thus cannot be changed by dispel magic, anti-magic shell, or Mordenkainen's disjunction. If the gem is somehow destroyed or alter significantly, the items inside it will be destroyed. The gem can only be accessed by someone with a read gem active. The gem can hold a maximum of 1 pound per gold piece. If its "volume" is too small to contain a caster's ability, it shatters. If the duration of the spell runs out the structure of the gem changes back into its normal structure over the course of 1 week per 100 gp worth. Any items in it are destroyed after it has changed back over half of its worth.
If the gem is not filled to capacity, there is a chance that items stored within it will not be destroyed if the gem is altered or destroyed. This chance depends on the state the gem is in and on the amount of space still left within the gem. The chance is a base 100%, minus 1% per percentage of storing ability used, minus 1% per fragment of the gem (two large pieces -2, many small splinters probably -2000%).
The material components are two gems of the same kind, size, price, colour: everything. One gem then has to be enlarged with an enlarge spell. The gem has to be cut in half, hollowed out, and one half filled with enough potions of reduction to be completely filled. For every 100 gp worth, one potion is required. The gem the has to be sealed with ultimate glue. Once this is done, the whole gem has to be reduced again to its original size. Now it can be used as a material component for the actual storing gem.

