a coloured glass dish cracked spontaneously on my window sill this morning Spooky or what? Why would this happen?

[amandacollin]

[jackthehat]

Is it Venetian (Murano) glass ?
They have a habit of doing that.................

[amandacollin]

Not sure if actually Murano but that sort of thing. I've got lots of glass but never heard of this. What could be the cause ? It was a bit frightening!

[jackthehat]

Have you had it long ?
A lot of the 'tourist' glass mass-produced in 1960's/1970's was less..........erm........well-made than you would usually expect.
My mum had some 'exploding' murano objects which is why I know.
And they were placed in different areas, etc. around the house.

[naomi24]

It could have been inadvertently knocked at some time, and received an unseen hairline crack which eventually gave out - or perhaps it could have been stressed by extremes of temperature? It's on a windowsill, but is it also over a radiator?

[amandacollin]

Have had it for 2/3 years. There is a radiator but it's not close as it's a bay window. I just hope other things don't do the same. I guess it could be the funny weather (air pressure) But feel a bit better that you guys have known this happen. Thanks!!

[naomi24]

If it was my dish, I'd just assume there was a fault in the glass - that's the most likely explanation, I'd have thought.

[Graham-W]

If it was warm on the house side and cold nearest the window this could set up enough stress across the glass to break it, especially if there was already a stressline or minor fracture in the glass.

[amandacollin]

The dish is now wrapped in newspaper and in a bin liner outside. I'm wearing my crucifix and chewing garlic. Not a hot day just windy and wet like the rest of GB. Thank your all for your input.