u/newSeaContribution

A drive way for trucks to deliver bleach to tanks for a water parks water treatment. After 20 years of exposure to the various spills and water overflows, I've started noticing and picking these out of the bunch as I walk through. It's been a few years since I started picking it and I can almost always find at least one new one every time I walk though. I'm very ignorant of what I'm finding though, started as just thinking they were cool rocks till a friend had me Google banded agates

This is on the inside sidewall of my rear driver tire. Everything was inflated properly according to the dash display. I was turning left off of the highway, going about 30mph, when I heard the air fwoosh out suddenly.

There was nothing in the road that I could see before the "fwoosh" and there wasn't anything lodged in the cut.

I've already got a replacement ordered an it'll be here in the morning but I'd like to figure out what I did wrong to ruin a $200 tire that's less than a year old