tempered glass vs pyrex glass

[Yasmin65]

I would like to know the difference (if any) between tempered glass and pyrex glass. Both are available with the vision mini vivi nova.

 

[steved5600]

Rather than me taking credit for this answer I'll give you the link. Looks like Pyrex is not always Pyrex now. Is pyrex just tempered glass, or is there anything else in ...