Brickeyee, anyone? Off topic question...
Ok. Where to post this? I don't know - but we're befuddled!
"arcoroc" mugs from France. Tempered glass, got them from goodwill years ago. About 3 months ago, I used one to store unpolished rocks from DS's kit.
Today, after rinsing with temperate water, DH sprinkled in some liquid dishwashing soap, rinsed, drained, & set it to the side on the counter.
Never hot or cold water used in this cup, today.
About 10 hours later, it shattered - loudly! I was upstairs & heard it. DH was about 7 feet away, & hadn't been closer recently.
Kept popping & crackling - with pieces of glass hopping - for more than 20 minutes! ("Snap-crackle-hop", lol).
We just stood... Staring, listening, watching & theorizing. I asked, "you don't think it's supernatural, do you?" & he said "no way, there's a logical explanation". Then he reached out to pick up a piece of glass, jerked back and dropped it - said it "shocked me - like, electrically!". He's thinking somehow, after 15 minutes, some kind of vibrations made it feel shocking...
I took this pic, placed another mug behind for reference of what the rubble used to look like...
Any thoughts? We are stumped, I've googled & all I find is temperature issues. I also posted it in Collectibles forum, thinking perhaps someone familiar with glassware can explain it.. Help?