How to cut firebrick

What is the best way to cut the cinder type of firebrick. I think it would be tough with a circular saw, no good way to hold down the brick. Can I get a blade for my table saw?

 

I use a grinder and diamond blade

 

I just cut some using a diamond jigsaw blade.

 

This is what I did , worked perfect !

 

Judo chop?

 

These cut firebrick like butta!

 

Thanks to everyone for the responses. I am going to pickup a diamond wheel for my angle grinder. It should work fine for my needs.