we was at the table herd a cracking sound and glass went everywhere.. it was not hot and we have had the rocks in it for about 10 years now... can anyone tell me why this would happen its just weird lol?I have a blown glass full of clear stones...And today it just blowed up why did this happen?
The three most likely reasons are that
1 the glass had a tension in it which caused a small crack, scratch or chip to grow until it let go and the stones added to the noise
2. if the stones were larger - like big marbles, etc. - then they might have jammed with the slight expansion and contraction of the glass container and applied enough pressure (say in cooling when the air conditioner came on) to make the weakest point let go.
3. The piece was not properly annealed in the first place and after years it just let go on its own - this is reported in glassblowing groups.
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