[Rockhounds] samples for young kids

[DonH]

Alan Silverstein wrote:

> Speaking from experience, if you give out mica books to elementary
> school kids during your geology presentation, most of it will end up on
> the floor in tiny little bits by the end of your talk.  (grin)

Unless of course you ask for two pair of polarized sunglasses, cross 
them, put the mica sheet in between, hold it up to the window, and show 
them the rainbow of interference colors!

best,
Don