Ok, I've had enough

I am sick and tired of seeing "fluorite" spelled "flourite".
There is a big difference between using a crystal material with superior refractive qualities and using a clay gravel material (for lining aquariums) in a refractor telescope. I realize that it is an easy mistake but nearly 40% of the ads here on Astromart have it spelled wrong. This is flourite:
http://www.seachem.com/en_products/product_pages/049_flourite.html
As you can see it wouldn't make a very good refractor lens :-)

Clear Skies,

Joplin

There is also a comma required after the word "mistake", because it uses a conjunction to separate two complete thoughts, much like this sentence does (although this sentence also contains a long and complex parenthetical phrase afterward, making it a bit of a run-on).

<http://www.seachem.com/en_products/product_pages/049_flourite.html
As you can see it wouldn't make a very good refractor lens :-)>>

Actually that's FLOURITE, Joplin.

Take care.
-Dan