That sounds a little like Mark Eberhart's "Why Things Break", where he talks about a company made a contact lens product out of materials similar to Corelle. O

That sounds a little like Mark Eberhart's "Why Things Break", where he talks about a company made a contact lens product out of materials similar to Corelle. One product was almost ready to be put on the market when they realized that there was the potential for pitting or scratches to result in the lens shattering explosively. Needless to say it didn't make it onto the shelves. I recommend that book; lots of interesting anecdotes and some good explanations of the underlying materials.