Silica sand - 99% quartz

Anyone know where I can find this type of sand?

Its commonly called silver sand, river sand

Its limefree and neutral pH

Thanks.

You mean silica sand?

I am guessing normal lapis gravel should do the trick. Its pH neutral and inert.

Yeah i mean silica sand

is lapis gravel same as silica sand?

I use lapis gravel as it is cheap and used for substrate that is inert. However, do note that there might be a slight chance that there is a little limestone inside due to mixture but it is minimal and won't last more than a month or so.