Yes, the header says it all...

Mist energy was defined as a form of energy that can slowly be collected from the air.
Crystal energy was defined as a form of energy, that unlike mist, does not disperse quickly and can be stored easily...

by the term itself: Mist is a dispersed quantity of a substance in air. Crystal is a lattice made of a substance.

Diamond - a crystal composed of compressed carbon, but it is made naturally by the earth in a real lot of years
In recent years, we have had the technology to create our own synthetic diamond, although it does not maintain the same color as natural diamond, it still is diamond.

My proposal:
NPC capable of compressing a set amount of energy in your mist tank to crystal.
But since it was compressed, you would get less than the original amount. As a tradeoff though, this allows you to store it, AND LET YOUR MIST TANK REFILL beyond that 100 Mce limit.

the conversion would be...
A. 100 mist = 95 crystal
B. 50 mist = 40 crystal
C. 10 mist = 7 crystal
D. 5 mist = 3 crystal

THERE IS ALSO CROWN COSTS but haven't thought of how much yet...

Why decrement? balance issues, and to avoid people from abusing it....

this is helpful, for example I cant play today while my mist tank is full, and I could only be back tomorrow, then I wasted 100 worth of refill of mist....

I have another mist conversion idea, but maybe later...

EDIT: 7/1/11 crown cost...