It depends on what you call “ordinary silicates”. The matrix is mostly sodium borosilicate with a bunch of additives and is as stable as a glass could be. Ther

It depends on what you call “ordinary silicates”. The matrix is mostly sodium borosilicate with a bunch of additives and is as stable as a glass could be. There are precipitates caused by some of the waste elements (things like ruthenium, rhodium and palladium, for example). They have issues but still quite far from making the glass crumble. As with all glasses, crystallisation is an open question but won’t happen for a very long time either.