I never see this many fake jade being sold by medium-sized dealer. I visited a lot of dealer, and 9 out of 10 were selling something like these:
This one looks like a white-brown jadeite or nephrite from xinjiang. Apparently, I suspect this is dyed chalcedony because the density is much lower than nephrite (this piece's density is around 2.6). The seller tried to sold this one for $1500 until I proved that he was wrong. I gave this for free as long as I left his shop at that instant
I have also seen some jadeite that glow in low intensity light. It even glow in the dark
I suspected that the jadeite has been coated with some material such as uranium glass. I really want to take a pic of this 'jadeite', but the seller forbid me 

This one looks like a white-brown jadeite or nephrite from xinjiang. Apparently, I suspect this is dyed chalcedony because the density is much lower than nephrite (this piece's density is around 2.6). The seller tried to sold this one for $1500 until I proved that he was wrong. I gave this for free as long as I left his shop at that instant

I have also seen some jadeite that glow in low intensity light. It even glow in the dark

