If the sand get in steaming hot lava, will they melt into glass?

Hello gaara. How did you learn to use the sand as a weapon?

oh my god can you really kill people with sand that's like so flippin cool i wish i could kill people with sand i'd kill kevin with sand i mean no joke or anything but there's always all this sand around because its a playground and can you teach me to kill people with sand can you can you can you or at least hurt them really bad

*tail sways from side to side and ears twitch slightly*

oh, hello there.

*Sits,Paws at,whines*