It must be a terrible responsibility to be an expert on every subject.
"animaux" wrote in message
news
On Mon, 05 May 2003 21:32:17 -0500, Rusty Mase
wrote:


Totally amazing. I have a nice optical microscope and it looks like
the same stuff when you just look at it. But if you heat up amorphous
silica it does vitrify (crystalize) somewhat - but this topic gets so
complicated that I am no where smart enough to figure it out.

Did you know there are hundreds of forms of mineral (and sort of
mineral) silica. Beyond me folks. I used to think it was all just
sand.

Rusty Mase

When I lived up in Denton County, the Carrolton library had a reference
book
called "Diatoms" which has a few thousand pages! A very complicated form
of
life for being single celled in most cases!

V