transparent lead

You outnumber me by count
of one. Although I count one,
too, I'm done when you weigh
in. I can't count mine! When
yours turns gold in light divine,
and mine turns lead by alchemy. 

I only want your one, you see. 
Set next to mine, my one 
turns clear in everything 
you say, I hear. In every
thing you show I see. 
My one weighs tons, 
and feels like gold. 

It's only me.