I was like 10 waiting for my dad to get off work. He was a surveyor and brought this blue rock thing with him for me when he got off. He said they were surveying and his friend took a pickax to a rock and this broke off. There was of course some dust and shattered pieces with it to (like 12 years ago when i got it). I don't know anything about rocks, gems, crystals, and all of that, but everyone I ask that does can't tell me for sure what it is. Only good guesses. In my own research it looks like a blue opal, blue granite, or blue agate. But they have only a little bit of similarities with it, not exactly the same, not even close enough to say for sure.
It's heavy and almost the size of my head. It was found on a construction job site in Seattle.
I just wanna know what it is for sure since it's been such a mystery. Some people said man-made but I was there on the job site. From what I remember they asked if I wanted more because it was the size of a car down there.