[oldjake]

i just bought a bag of nepheline syenite , never heard of that name before, thye say its silca sand , anybody used it ,and is it safe to use? thanks

 

[hoppycalif]

http://www.state.ar.us/agc/nephelin.htm
It looks good to me.

 

[oldjake]

thanks hoppycalif, just wanted to be sure