Tempered glass will explode. I had a tempered glass chafing dish that did that to me. What people don't understand is that cast iron, if very hot, and it's submersed into very cold water can do the same thing. The problem with these materials is that they are rigid, and are relatively poor conductors of heat, with a considerable amount of mass. As you subject them to conditions that rapidly cool or heat them (and remember, the more extreme the temperature difference, the faster the energy transfer occurs) the outermost skin of the material will expand or contract rapidly, while the inner portion of the material expands or contracts to a lesser amount. As the material has little or no flexibility, the forces cause catastrophic failure of the glass or cast iron.
Cast iron is a much better conductor than is glass, and so requires much more abuse to cause the same failure; but it can happen.
Stoneware and crockery will do the same things if taken from very hot to very cold or vice-versa.
Stainless steel, steel, and aluminum warp when subjected to the same abuse as they are much more flexible.
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