I Found a Rock (UPDATE: 07/07/2011 I FOUND ANOTHER ROCK)

[romeo-1]

I put the detector away today and did some rock hounding. It's pale yellow and where it is broken is as clear as glass. I don't think that it is quartz because it's crystal clear all through. I think that if it was polished you could see clear through it. Any ideas?

 

[CRUSADER]

Re: I Found a Rock

VOLCANIC GLASS

http://www.google.co.uk/search?q=vo...QPpi93mDQ&sqi=2&ved=0CD0QsAQ&biw=1280&bih=843

After seeing a recent programme on TV, I now think this is most likely

Sorry for the 120 day delay but I have a long memory