I got these green chalcedony stones from the fellow in the booth accross from mine in Tucson a couple of years ago.  He has been selling these stones as a green chalcedony.  A nearby quary in Zimbabwe recently changed hands and the new owner decided that the world needed a new gem stone.  So he went on a PR blitz and called this green chalceony with brown inclusions: Aquaprise.  It worked sales of the stone are up.

Whatever you call this stone, its still nicely complements the red Lyons sandstone I use.  I have a few slabs of the stone and would love to fit them into a table top for you.   Drop me a note at  Bill@WKPAccentTables.com