John Hutchison Open Sources His Infinite Crystal Power Cell - Is this it?

I cannot view the videos here at work.

So, I have some basic questions that might just be answered in the videos. But anyway...

The reference is to crystals.

What kind of crystals?
Where does one get these type of crystals?
Are they found in nature or are they manufactured/processed?
How would you know the correct type of crystal when you had it in your hand?

Your welcome.
For people who do not know piezoelectric effect: [link to en.wikipedia.org]

It is used/tested in footwear or clothing now to create power when you walk or move. Some crystals produce electrons when you bend or disturb them. This effect is the piezoelectric effect.
[link to ieeexplore.ieee.org]
According to Hutchison, his mineral crystals resonate on the same frequencies found in the zero point field. The zero point field is supposed to be an electric field that exists everywhere in the universe. This field is vibrating and charges and even elements or constantly going into and out of existence.
They found that if you cool matter to 0 Kelvin, that molecules did not completely cease to move and swirl. There was still energy left, constantly, to keep the elements moving. Some attribute this too this zero point field.
So his crystals get excited by this field, they resonate, and so constantly vibrate and produce a steady small current we can actually use. That is the theory.