It isn't clear, but there's a picture of a 960 pound, 27" smokey quartz sphere on a web page at: http://www.innerjourneys.com/sqz32601.htm
A smaller clear one is at: http://www.netins.net/showcase/rockcutter/qzsph.htm
It isn't clear, but there's a picture of a 960 pound, 27" smokey quartz sphere on a web page at: http://www.innerjourneys.com/sqz32601.htm
A smaller clear one is at: http://www.netins.net/showcase/rockcutter/qzsph.htm